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Finding the Fourth Proportional to 93,305.80, 139,958.70 and 88,251.40

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Solution

The fourth proportional to 93,305.80, 139,958.70 and 88,251.40 is: 132,377.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,305.80 : 139,958.70 = 88,251.40 : x
  2. Step 2: Convert to fraction form
    93,305.80/139,958.70 = 88,251.40/x
  3. Step 3: Cross multiply
    93,305.80x = 139,958.70 × 88,251.40
  4. Step 4: Simplify right side
    93,305.80x = 12,351,551,217.18
  5. Step 5: Solve for x
    x = 12,351,551,217.18/93,305.80
  6. Step 6: Final answer
    x = 132,377.10

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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.