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Finding the Fourth Proportional to 60,419.40, 90,542.70 and 41,929.80

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Solution

The fourth proportional to 60,419.40, 90,542.70 and 41,929.80 is: 62,834.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,419.40 : 90,542.70 = 41,929.80 : x
  2. Step 2: Convert to fraction form
    60,419.40/90,542.70 = 41,929.80/x
  3. Step 3: Cross multiply
    60,419.40x = 90,542.70 × 41,929.80
  4. Step 4: Simplify right side
    60,419.40x = 3,796,437,302.46
  5. Step 5: Solve for x
    x = 3,796,437,302.46/60,419.40
  6. Step 6: Final answer
    x = 62,834.74

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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.