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Finding the Fourth Proportional to 157,658.10, 236,487.15 and 144,755.70

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Solution

The fourth proportional to 157,658.10, 236,487.15 and 144,755.70 is: 217,133.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,658.10 : 236,487.15 = 144,755.70 : x
  2. Step 2: Convert to fraction form
    157,658.10/236,487.15 = 144,755.70/x
  3. Step 3: Cross multiply
    157,658.10x = 236,487.15 × 144,755.70
  4. Step 4: Simplify right side
    157,658.10x = 34,232,862,939.26
  5. Step 5: Solve for x
    x = 34,232,862,939.26/157,658.10
  6. Step 6: Final answer
    x = 217,133.55

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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.