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Finding the Fourth Proportional to 243,712.80, 365,423.40 and 125,614.80

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Solution

The fourth proportional to 243,712.80, 365,423.40 and 125,614.80 is: 188,347.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,712.80 : 365,423.40 = 125,614.80 : x
  2. Step 2: Convert to fraction form
    243,712.80/365,423.40 = 125,614.80/x
  3. Step 3: Cross multiply
    243,712.80x = 365,423.40 × 125,614.80
  4. Step 4: Simplify right side
    243,712.80x = 45,902,587,306.32
  5. Step 5: Solve for x
    x = 45,902,587,306.32/243,712.80
  6. Step 6: Final answer
    x = 188,347.05

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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.