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Finding the Fourth Proportional to 93,616.90, 140,206.65 and 91,737.70

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Solution

The fourth proportional to 93,616.90, 140,206.65 and 91,737.70 is: 137,392.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,616.90 : 140,206.65 = 91,737.70 : x
  2. Step 2: Convert to fraction form
    93,616.90/140,206.65 = 91,737.70/x
  3. Step 3: Cross multiply
    93,616.90x = 140,206.65 × 91,737.70
  4. Step 4: Simplify right side
    93,616.90x = 12,862,235,595.71
  5. Step 5: Solve for x
    x = 12,862,235,595.71/93,616.90
  6. Step 6: Final answer
    x = 137,392.24

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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.