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Finding the Fourth Proportional to 242,605.80, 363,924.90 and 82,679.40

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Solution

The fourth proportional to 242,605.80, 363,924.90 and 82,679.40 is: 124,024.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,605.80 : 363,924.90 = 82,679.40 : x
  2. Step 2: Convert to fraction form
    242,605.80/363,924.90 = 82,679.40/x
  3. Step 3: Cross multiply
    242,605.80x = 363,924.90 × 82,679.40
  4. Step 4: Simplify right side
    242,605.80x = 30,089,092,377.06
  5. Step 5: Solve for x
    x = 30,089,092,377.06/242,605.80
  6. Step 6: Final answer
    x = 124,024.62

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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.