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Finding the Fourth Proportional to 91,836.76, 137,755.14 and 36,432.76

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Solution

The fourth proportional to 91,836.76, 137,755.14 and 36,432.76 is: 54,649.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,836.76 : 137,755.14 = 36,432.76 : x
  2. Step 2: Convert to fraction form
    91,836.76/137,755.14 = 36,432.76/x
  3. Step 3: Cross multiply
    91,836.76x = 137,755.14 × 36,432.76
  4. Step 4: Simplify right side
    91,836.76x = 5,018,799,954.39
  5. Step 5: Solve for x
    x = 5,018,799,954.39/91,836.76
  6. Step 6: Final answer
    x = 54,649.14

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Similar ratio
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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.