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Finding the Fourth Proportional to 115,295.35, 172,995.58 and 59,174.87

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Solution

The fourth proportional to 115,295.35, 172,995.58 and 59,174.87 is: 88,789.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,295.35 : 172,995.58 = 59,174.87 : x
  2. Step 2: Convert to fraction form
    115,295.35/172,995.58 = 59,174.87/x
  3. Step 3: Cross multiply
    115,295.35x = 172,995.58 × 59,174.87
  4. Step 4: Simplify right side
    115,295.35x = 10,236,990,957.07
  5. Step 5: Solve for x
    x = 10,236,990,957.07/115,295.35
  6. Step 6: Final answer
    x = 88,789.28

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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.