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Finding the Fourth Proportional to 172,497.60, 258,746.40 and 88,225.20

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Solution

The fourth proportional to 172,497.60, 258,746.40 and 88,225.20 is: 132,337.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,497.60 : 258,746.40 = 88,225.20 : x
  2. Step 2: Convert to fraction form
    172,497.60/258,746.40 = 88,225.20/x
  3. Step 3: Cross multiply
    172,497.60x = 258,746.40 × 88,225.20
  4. Step 4: Simplify right side
    172,497.60x = 22,827,952,889.28
  5. Step 5: Solve for x
    x = 22,827,952,889.28/172,497.60
  6. Step 6: Final answer
    x = 132,337.80

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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.