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Finding the Fourth Proportional to 72,406.70, 108,610.05 and 41,302.70

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Solution

The fourth proportional to 72,406.70, 108,610.05 and 41,302.70 is: 61,954.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,406.70 : 108,610.05 = 41,302.70 : x
  2. Step 2: Convert to fraction form
    72,406.70/108,610.05 = 41,302.70/x
  3. Step 3: Cross multiply
    72,406.70x = 108,610.05 × 41,302.70
  4. Step 4: Simplify right side
    72,406.70x = 4,485,888,312.14
  5. Step 5: Solve for x
    x = 4,485,888,312.14/72,406.70
  6. Step 6: Final answer
    x = 61,954.05

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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.