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Finding the Fourth Proportional to 93,684.80, 140,549.72 and 27,129.53

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Solution

The fourth proportional to 93,684.80, 140,549.72 and 27,129.53 is: 40,700.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,684.80 : 140,549.72 = 27,129.53 : x
  2. Step 2: Convert to fraction form
    93,684.80/140,549.72 = 27,129.53/x
  3. Step 3: Cross multiply
    93,684.80x = 140,549.72 × 27,129.53
  4. Step 4: Simplify right side
    93,684.80x = 3,813,048,060.96
  5. Step 5: Solve for x
    x = 3,813,048,060.96/93,684.80
  6. Step 6: Final answer
    x = 40,700.82

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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.