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Finding the Fourth Proportional to 153,841.56, 212,301.24 and 86,773.56

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Solution

The fourth proportional to 153,841.56, 212,301.24 and 86,773.56 is: 119,747.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,841.56 : 212,301.24 = 86,773.56 : x
  2. Step 2: Convert to fraction form
    153,841.56/212,301.24 = 86,773.56/x
  3. Step 3: Cross multiply
    153,841.56x = 212,301.24 × 86,773.56
  4. Step 4: Simplify right side
    153,841.56x = 18,422,134,387.21
  5. Step 5: Solve for x
    x = 18,422,134,387.21/153,841.56
  6. Step 6: Final answer
    x = 119,747.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.