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Finding the Fourth Proportional to 172,417.01, 258,632.80 and 60,108.48

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Solution

The fourth proportional to 172,417.01, 258,632.80 and 60,108.48 is: 90,165.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,417.01 : 258,632.80 = 60,108.48 : x
  2. Step 2: Convert to fraction form
    172,417.01/258,632.80 = 60,108.48/x
  3. Step 3: Cross multiply
    172,417.01x = 258,632.80 × 60,108.48
  4. Step 4: Simplify right side
    172,417.01x = 15,546,024,335.87
  5. Step 5: Solve for x
    x = 15,546,024,335.87/172,417.01
  6. Step 6: Final answer
    x = 90,165.26

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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.