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Finding the Fourth Proportional to 162,425.61, 243,679.94 and 67,624.28

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Solution

The fourth proportional to 162,425.61, 243,679.94 and 67,624.28 is: 101,453.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,425.61 : 243,679.94 = 67,624.28 : x
  2. Step 2: Convert to fraction form
    162,425.61/243,679.94 = 67,624.28/x
  3. Step 3: Cross multiply
    162,425.61x = 243,679.94 × 67,624.28
  4. Step 4: Simplify right side
    162,425.61x = 16,478,678,936.42
  5. Step 5: Solve for x
    x = 16,478,678,936.42/162,425.61
  6. Step 6: Final answer
    x = 101,453.70

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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.