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Finding the Fourth Proportional to 157,144.11, 216,821.03 and 92,615.91

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Solution

The fourth proportional to 157,144.11, 216,821.03 and 92,615.91 is: 127,787.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,144.11 : 216,821.03 = 92,615.91 : x
  2. Step 2: Convert to fraction form
    157,144.11/216,821.03 = 92,615.91/x
  3. Step 3: Cross multiply
    157,144.11x = 216,821.03 × 92,615.91
  4. Step 4: Simplify right side
    157,144.11x = 20,081,077,000.59
  5. Step 5: Solve for x
    x = 20,081,077,000.59/157,144.11
  6. Step 6: Final answer
    x = 127,787.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.