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Finding the Fourth Proportional to 144,634.10, 216,931.15 and 44,862.90

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Solution

The fourth proportional to 144,634.10, 216,931.15 and 44,862.90 is: 67,288.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,634.10 : 216,931.15 = 44,862.90 : x
  2. Step 2: Convert to fraction form
    144,634.10/216,931.15 = 44,862.90/x
  3. Step 3: Cross multiply
    144,634.10x = 216,931.15 × 44,862.90
  4. Step 4: Simplify right side
    144,634.10x = 9,732,160,489.34
  5. Step 5: Solve for x
    x = 9,732,160,489.34/144,634.10
  6. Step 6: Final answer
    x = 67,288.15

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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.