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Finding the Fourth Proportional to 238,572.48, 357,636.24 and 80,691.06

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Solution

The fourth proportional to 238,572.48, 357,636.24 and 80,691.06 is: 120,961.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,572.48 : 357,636.24 = 80,691.06 : x
  2. Step 2: Convert to fraction form
    238,572.48/357,636.24 = 80,691.06/x
  3. Step 3: Cross multiply
    238,572.48x = 357,636.24 × 80,691.06
  4. Step 4: Simplify right side
    238,572.48x = 28,858,047,300.01
  5. Step 5: Solve for x
    x = 28,858,047,300.01/238,572.48
  6. Step 6: Final answer
    x = 120,961.34

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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.