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Finding the Fourth Proportional to 105,062.73, 157,572.89 and 38,480.12

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Solution

The fourth proportional to 105,062.73, 157,572.89 and 38,480.12 is: 57,712.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,062.73 : 157,572.89 = 38,480.12 : x
  2. Step 2: Convert to fraction form
    105,062.73/157,572.89 = 38,480.12/x
  3. Step 3: Cross multiply
    105,062.73x = 157,572.89 × 38,480.12
  4. Step 4: Simplify right side
    105,062.73x = 6,063,423,715.95
  5. Step 5: Solve for x
    x = 6,063,423,715.95/105,062.73
  6. Step 6: Final answer
    x = 57,712.41

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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.