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Finding the Fourth Proportional to 93,939.96, 140,868.98 and 35,531

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Solution

The fourth proportional to 93,939.96, 140,868.98 and 35,531 is: 53,281.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,939.96 : 140,868.98 = 35,531 : x
  2. Step 2: Convert to fraction form
    93,939.96/140,868.98 = 35,531/x
  3. Step 3: Cross multiply
    93,939.96x = 140,868.98 × 35,531
  4. Step 4: Simplify right side
    93,939.96x = 5,005,215,728.38
  5. Step 5: Solve for x
    x = 5,005,215,728.38/93,939.96
  6. Step 6: Final answer
    x = 53,281.01

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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.