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Finding the Fourth Proportional to 161,778.10, 242,667.15 and 83,046.10

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Solution

The fourth proportional to 161,778.10, 242,667.15 and 83,046.10 is: 124,569.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,778.10 : 242,667.15 = 83,046.10 : x
  2. Step 2: Convert to fraction form
    161,778.10/242,667.15 = 83,046.10/x
  3. Step 3: Cross multiply
    161,778.10x = 242,667.15 × 83,046.10
  4. Step 4: Simplify right side
    161,778.10x = 20,152,560,405.62
  5. Step 5: Solve for x
    x = 20,152,560,405.62/161,778.10
  6. Step 6: Final answer
    x = 124,569.15

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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.