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Finding the Fourth Proportional to 171,697.30, 257,545.95 and 115,710.10

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Solution

The fourth proportional to 171,697.30, 257,545.95 and 115,710.10 is: 173,565.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,697.30 : 257,545.95 = 115,710.10 : x
  2. Step 2: Convert to fraction form
    171,697.30/257,545.95 = 115,710.10/x
  3. Step 3: Cross multiply
    171,697.30x = 257,545.95 × 115,710.10
  4. Step 4: Simplify right side
    171,697.30x = 29,800,667,629.10
  5. Step 5: Solve for x
    x = 29,800,667,629.10/171,697.30
  6. Step 6: Final answer
    x = 173,565.15

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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.