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Finding the Fourth Proportional to 113,319,089.20, 169,978,633.80 and 88,660,226.80

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Solution

The fourth proportional to 113,319,089.20, 169,978,633.80 and 88,660,226.80 is: 132,990,340.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,319,089.20 : 169,978,633.80 = 88,660,226.80 : x
  2. Step 2: Convert to fraction form
    113,319,089.20/169,978,633.80 = 88,660,226.80/x
  3. Step 3: Cross multiply
    113,319,089.20x = 169,978,633.80 × 88,660,226.80
  4. Step 4: Simplify right side
    113,319,089.20x = 15,070,344,223,862,146
  5. Step 5: Solve for x
    x = 15,070,344,223,862,146/113,319,089.20
  6. Step 6: Final answer
    x = 132,990,340.20

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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.