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Finding the Fourth Proportional to 238,712.22, 357,846.84 and 80,830.26

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Solution

The fourth proportional to 238,712.22, 357,846.84 and 80,830.26 is: 121,170.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,712.22 : 357,846.84 = 80,830.26 : x
  2. Step 2: Convert to fraction form
    238,712.22/357,846.84 = 80,830.26/x
  3. Step 3: Cross multiply
    238,712.22x = 357,846.84 × 80,830.26
  4. Step 4: Simplify right side
    238,712.22x = 28,924,853,117.38
  5. Step 5: Solve for x
    x = 28,924,853,117.38/238,712.22
  6. Step 6: Final answer
    x = 121,170.39

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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.