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Finding the Fourth Proportional to 172,347.18, 258,597.64 and 88,062.96

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Solution

The fourth proportional to 172,347.18, 258,597.64 and 88,062.96 is: 132,133.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,347.18 : 258,597.64 = 88,062.96 : x
  2. Step 2: Convert to fraction form
    172,347.18/258,597.64 = 88,062.96/x
  3. Step 3: Cross multiply
    172,347.18x = 258,597.64 × 88,062.96
  4. Step 4: Simplify right side
    172,347.18x = 22,772,873,627.41
  5. Step 5: Solve for x
    x = 22,772,873,627.41/172,347.18
  6. Step 6: Final answer
    x = 132,133.72

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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.