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Finding the Fourth Proportional to 92,333.76, 138,451.37 and 47,915.79

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Solution

The fourth proportional to 92,333.76, 138,451.37 and 47,915.79 is: 71,848.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,333.76 : 138,451.37 = 47,915.79 : x
  2. Step 2: Convert to fraction form
    92,333.76/138,451.37 = 47,915.79/x
  3. Step 3: Cross multiply
    92,333.76x = 138,451.37 × 47,915.79
  4. Step 4: Simplify right side
    92,333.76x = 6,634,006,530.55
  5. Step 5: Solve for x
    x = 6,634,006,530.55/92,333.76
  6. Step 6: Final answer
    x = 71,848.11

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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.