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Finding the Fourth Proportional to 72,536,609.60, 108,804,914.40 and 50,995,534.40

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Solution

The fourth proportional to 72,536,609.60, 108,804,914.40 and 50,995,534.40 is: 76,493,301.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,536,609.60 : 108,804,914.40 = 50,995,534.40 : x
  2. Step 2: Convert to fraction form
    72,536,609.60/108,804,914.40 = 50,995,534.40/x
  3. Step 3: Cross multiply
    72,536,609.60x = 108,804,914.40 × 50,995,534.40
  4. Step 4: Simplify right side
    72,536,609.60x = 5,548,564,755,174,256
  5. Step 5: Solve for x
    x = 5,548,564,755,174,256/72,536,609.60
  6. Step 6: Final answer
    x = 76,493,301.60

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.