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Finding the Fourth Proportional to 172,683.73, 258,547.35 and 88,262.11

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Solution

The fourth proportional to 172,683.73, 258,547.35 and 88,262.11 is: 132,148.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,683.73 : 258,547.35 = 88,262.11 : x
  2. Step 2: Convert to fraction form
    172,683.73/258,547.35 = 88,262.11/x
  3. Step 3: Cross multiply
    172,683.73x = 258,547.35 × 88,262.11
  4. Step 4: Simplify right side
    172,683.73x = 22,819,934,330.52
  5. Step 5: Solve for x
    x = 22,819,934,330.52/172,683.73
  6. Step 6: Final answer
    x = 132,148.72

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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.