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Finding the Fourth Proportional to 92,336.28, 138,404.16 and 47,295.84

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Solution

The fourth proportional to 92,336.28, 138,404.16 and 47,295.84 is: 70,892.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,336.28 : 138,404.16 = 47,295.84 : x
  2. Step 2: Convert to fraction form
    92,336.28/138,404.16 = 47,295.84/x
  3. Step 3: Cross multiply
    92,336.28x = 138,404.16 × 47,295.84
  4. Step 4: Simplify right side
    92,336.28x = 6,545,941,006.69
  5. Step 5: Solve for x
    x = 6,545,941,006.69/92,336.28
  6. Step 6: Final answer
    x = 70,892.41

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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.