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Finding the Fourth Proportional to 171,864.52, 257,796.80 and 53,545.40

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Solution

The fourth proportional to 171,864.52, 257,796.80 and 53,545.40 is: 80,318.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,864.52 : 257,796.80 = 53,545.40 : x
  2. Step 2: Convert to fraction form
    171,864.52/257,796.80 = 53,545.40/x
  3. Step 3: Cross multiply
    171,864.52x = 257,796.80 × 53,545.40
  4. Step 4: Simplify right side
    171,864.52x = 13,803,832,774.72
  5. Step 5: Solve for x
    x = 13,803,832,774.72/171,864.52
  6. Step 6: Final answer
    x = 80,318.11

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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.