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Finding the Fourth Proportional to 60,386.38, 90,531.93 and 38,152.90

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Solution

The fourth proportional to 60,386.38, 90,531.93 and 38,152.90 is: 57,199.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,386.38 : 90,531.93 = 38,152.90 : x
  2. Step 2: Convert to fraction form
    60,386.38/90,531.93 = 38,152.90/x
  3. Step 3: Cross multiply
    60,386.38x = 90,531.93 × 38,152.90
  4. Step 4: Simplify right side
    60,386.38x = 3,454,055,672.10
  5. Step 5: Solve for x
    x = 3,454,055,672.10/60,386.38
  6. Step 6: Final answer
    x = 57,199.25

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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.