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Finding the Fourth Proportional to 93,431.65, 140,064.15 and 34,253.53

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Solution

The fourth proportional to 93,431.65, 140,064.15 and 34,253.53 is: 51,349.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,431.65 : 140,064.15 = 34,253.53 : x
  2. Step 2: Convert to fraction form
    93,431.65/140,064.15 = 34,253.53/x
  3. Step 3: Cross multiply
    93,431.65x = 140,064.15 × 34,253.53
  4. Step 4: Simplify right side
    93,431.65x = 4,797,691,563.95
  5. Step 5: Solve for x
    x = 4,797,691,563.95/93,431.65
  6. Step 6: Final answer
    x = 51,349.75

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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.