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Finding the Fourth Proportional to 156,618.63, 234,927.95 and 38,288.57

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Solution

The fourth proportional to 156,618.63, 234,927.95 and 38,288.57 is: 57,432.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,618.63 : 234,927.95 = 38,288.57 : x
  2. Step 2: Convert to fraction form
    156,618.63/234,927.95 = 38,288.57/x
  3. Step 3: Cross multiply
    156,618.63x = 234,927.95 × 38,288.57
  4. Step 4: Simplify right side
    156,618.63x = 8,995,053,892.45
  5. Step 5: Solve for x
    x = 8,995,053,892.45/156,618.63
  6. Step 6: Final answer
    x = 57,432.85

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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.