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Finding the Fourth Proportional to 72,592.80, 108,892.40 and 41,002.40

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Solution

The fourth proportional to 72,592.80, 108,892.40 and 41,002.40 is: 61,505.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,592.80 : 108,892.40 = 41,002.40 : x
  2. Step 2: Convert to fraction form
    72,592.80/108,892.40 = 41,002.40/x
  3. Step 3: Cross multiply
    72,592.80x = 108,892.40 × 41,002.40
  4. Step 4: Simplify right side
    72,592.80x = 4,464,849,741.76
  5. Step 5: Solve for x
    x = 4,464,849,741.76/72,592.80
  6. Step 6: Final answer
    x = 61,505.41

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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.