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Finding the Fourth Proportional to 95,425.20, 143,137.80 and 91,488.60

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Solution

The fourth proportional to 95,425.20, 143,137.80 and 91,488.60 is: 137,232.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,425.20 : 143,137.80 = 91,488.60 : x
  2. Step 2: Convert to fraction form
    95,425.20/143,137.80 = 91,488.60/x
  3. Step 3: Cross multiply
    95,425.20x = 143,137.80 × 91,488.60
  4. Step 4: Simplify right side
    95,425.20x = 13,095,476,929.08
  5. Step 5: Solve for x
    x = 13,095,476,929.08/95,425.20
  6. Step 6: Final answer
    x = 137,232.90

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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.