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Finding the Fourth Proportional to 171,508.01, 257,289.28 and 53,154.86

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Solution

The fourth proportional to 171,508.01, 257,289.28 and 53,154.86 is: 79,740.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,508.01 : 257,289.28 = 53,154.86 : x
  2. Step 2: Convert to fraction form
    171,508.01/257,289.28 = 53,154.86/x
  3. Step 3: Cross multiply
    171,508.01x = 257,289.28 × 53,154.86
  4. Step 4: Simplify right side
    171,508.01x = 13,676,174,238.57
  5. Step 5: Solve for x
    x = 13,676,174,238.57/171,508.01
  6. Step 6: Final answer
    x = 79,740.73

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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.