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Finding the Fourth Proportional to 118,726.20, 178,046.10 and 59,542.20

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Solution

The fourth proportional to 118,726.20, 178,046.10 and 59,542.20 is: 89,291.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,726.20 : 178,046.10 = 59,542.20 : x
  2. Step 2: Convert to fraction form
    118,726.20/178,046.10 = 59,542.20/x
  3. Step 3: Cross multiply
    118,726.20x = 178,046.10 × 59,542.20
  4. Step 4: Simplify right side
    118,726.20x = 10,601,256,495.42
  5. Step 5: Solve for x
    x = 10,601,256,495.42/118,726.20
  6. Step 6: Final answer
    x = 89,291.63

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1.5x scale

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.