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Finding the Fourth Proportional to 91,951.92, 137,829.72 and 52,423.92

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Solution

The fourth proportional to 91,951.92, 137,829.72 and 52,423.92 is: 78,579.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,951.92 : 137,829.72 = 52,423.92 : x
  2. Step 2: Convert to fraction form
    91,951.92/137,829.72 = 52,423.92/x
  3. Step 3: Cross multiply
    91,951.92x = 137,829.72 × 52,423.92
  4. Step 4: Simplify right side
    91,951.92x = 7,225,574,214.90
  5. Step 5: Solve for x
    x = 7,225,574,214.90/91,951.92
  6. Step 6: Final answer
    x = 78,579.92

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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.