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Finding the Fourth Proportional to 172,622.44, 258,959.04 and 88,430.14

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Solution

The fourth proportional to 172,622.44, 258,959.04 and 88,430.14 is: 132,658.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,622.44 : 258,959.04 = 88,430.14 : x
  2. Step 2: Convert to fraction form
    172,622.44/258,959.04 = 88,430.14/x
  3. Step 3: Cross multiply
    172,622.44x = 258,959.04 × 88,430.14
  4. Step 4: Simplify right side
    172,622.44x = 22,899,784,161.47
  5. Step 5: Solve for x
    x = 22,899,784,161.47/172,622.44
  6. Step 6: Final answer
    x = 132,658.21

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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.