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Finding the Fourth Proportional to 162,712.20, 244,068.30 and 69,205.80

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Solution

The fourth proportional to 162,712.20, 244,068.30 and 69,205.80 is: 103,808.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,712.20 : 244,068.30 = 69,205.80 : x
  2. Step 2: Convert to fraction form
    162,712.20/244,068.30 = 69,205.80/x
  3. Step 3: Cross multiply
    162,712.20x = 244,068.30 × 69,205.80
  4. Step 4: Simplify right side
    162,712.20x = 16,890,941,956.14
  5. Step 5: Solve for x
    x = 16,890,941,956.14/162,712.20
  6. Step 6: Final answer
    x = 103,808.70

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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.