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Finding the Fourth Proportional to 162,487.80, 243,731.70 and 162,487.80

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Solution

The fourth proportional to 162,487.80, 243,731.70 and 162,487.80 is: 243,731.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,487.80 : 243,731.70 = 162,487.80 : x
  2. Step 2: Convert to fraction form
    162,487.80/243,731.70 = 162,487.80/x
  3. Step 3: Cross multiply
    162,487.80x = 243,731.70 × 162,487.80
  4. Step 4: Simplify right side
    162,487.80x = 39,603,427,723.26
  5. Step 5: Solve for x
    x = 39,603,427,723.26/162,487.80
  6. Step 6: Final answer
    x = 243,731.70

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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.