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Finding the Fourth Proportional to 110,488.60, 165,732.90 and 40,358.80

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Solution

The fourth proportional to 110,488.60, 165,732.90 and 40,358.80 is: 60,538.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,488.60 : 165,732.90 = 40,358.80 : x
  2. Step 2: Convert to fraction form
    110,488.60/165,732.90 = 40,358.80/x
  3. Step 3: Cross multiply
    110,488.60x = 165,732.90 × 40,358.80
  4. Step 4: Simplify right side
    110,488.60x = 6,688,780,964.52
  5. Step 5: Solve for x
    x = 6,688,780,964.52/110,488.60
  6. Step 6: Final answer
    x = 60,538.20

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1.5x scale

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.