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Finding the Fourth Proportional to 163,397.20, 245,095.80 and 88,553.20

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Solution

The fourth proportional to 163,397.20, 245,095.80 and 88,553.20 is: 132,829.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,397.20 : 245,095.80 = 88,553.20 : x
  2. Step 2: Convert to fraction form
    163,397.20/245,095.80 = 88,553.20/x
  3. Step 3: Cross multiply
    163,397.20x = 245,095.80 × 88,553.20
  4. Step 4: Simplify right side
    163,397.20x = 21,704,017,396.56
  5. Step 5: Solve for x
    x = 21,704,017,396.56/163,397.20
  6. Step 6: Final answer
    x = 132,829.80

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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.