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Finding the Fourth Proportional to 92,328.60, 138,486 and 29,150.88

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Solution

The fourth proportional to 92,328.60, 138,486 and 29,150.88 is: 43,724.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,328.60 : 138,486 = 29,150.88 : x
  2. Step 2: Convert to fraction form
    92,328.60/138,486 = 29,150.88/x
  3. Step 3: Cross multiply
    92,328.60x = 138,486 × 29,150.88
  4. Step 4: Simplify right side
    92,328.60x = 4,036,988,767.68
  5. Step 5: Solve for x
    x = 4,036,988,767.68/92,328.60
  6. Step 6: Final answer
    x = 43,724.14

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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.