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Finding the Fourth Proportional to 175,552.60, 263,328.90 and 86,979.10

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Solution

The fourth proportional to 175,552.60, 263,328.90 and 86,979.10 is: 130,468.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,552.60 : 263,328.90 = 86,979.10 : x
  2. Step 2: Convert to fraction form
    175,552.60/263,328.90 = 86,979.10/x
  3. Step 3: Cross multiply
    175,552.60x = 263,328.90 × 86,979.10
  4. Step 4: Simplify right side
    175,552.60x = 22,904,110,725.99
  5. Step 5: Solve for x
    x = 22,904,110,725.99/175,552.60
  6. Step 6: Final answer
    x = 130,468.65

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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.