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Finding the Fourth Proportional to 162,618.52, 243,920.46 and 67,809.64

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Solution

The fourth proportional to 162,618.52, 243,920.46 and 67,809.64 is: 101,711.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,618.52 : 243,920.46 = 67,809.64 : x
  2. Step 2: Convert to fraction form
    162,618.52/243,920.46 = 67,809.64/x
  3. Step 3: Cross multiply
    162,618.52x = 243,920.46 × 67,809.64
  4. Step 4: Simplify right side
    162,618.52x = 16,540,158,581.23
  5. Step 5: Solve for x
    x = 16,540,158,581.23/162,618.52
  6. Step 6: Final answer
    x = 101,711.41

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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.