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Finding the Fourth Proportional to 144,874.90, 217,312.35 and 136,710.10

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Solution

The fourth proportional to 144,874.90, 217,312.35 and 136,710.10 is: 205,065.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,874.90 : 217,312.35 = 136,710.10 : x
  2. Step 2: Convert to fraction form
    144,874.90/217,312.35 = 136,710.10/x
  3. Step 3: Cross multiply
    144,874.90x = 217,312.35 × 136,710.10
  4. Step 4: Simplify right side
    144,874.90x = 29,708,793,099.74
  5. Step 5: Solve for x
    x = 29,708,793,099.74/144,874.90
  6. Step 6: Final answer
    x = 205,065.15

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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.