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Finding the Fourth Proportional to 229,310.60, 343,919.22 and 87,106.08

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Solution

The fourth proportional to 229,310.60, 343,919.22 and 87,106.08 is: 130,641.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,310.60 : 343,919.22 = 87,106.08 : x
  2. Step 2: Convert to fraction form
    229,310.60/343,919.22 = 87,106.08/x
  3. Step 3: Cross multiply
    229,310.60x = 343,919.22 × 87,106.08
  4. Step 4: Simplify right side
    229,310.60x = 29,957,456,053.91
  5. Step 5: Solve for x
    x = 29,957,456,053.91/229,310.60
  6. Step 6: Final answer
    x = 130,641.40

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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.