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Finding the Fourth Proportional to 73,887.20, 110,830.80 and 44,338.40

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Solution

The fourth proportional to 73,887.20, 110,830.80 and 44,338.40 is: 66,507.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,887.20 : 110,830.80 = 44,338.40 : x
  2. Step 2: Convert to fraction form
    73,887.20/110,830.80 = 44,338.40/x
  3. Step 3: Cross multiply
    73,887.20x = 110,830.80 × 44,338.40
  4. Step 4: Simplify right side
    73,887.20x = 4,914,060,342.72
  5. Step 5: Solve for x
    x = 4,914,060,342.72/73,887.20
  6. Step 6: Final answer
    x = 66,507.60

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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.