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Finding the Fourth Proportional to 153,537.52, 211,882.24 and 89,019.30

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Solution

The fourth proportional to 153,537.52, 211,882.24 and 89,019.30 is: 122,846.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,537.52 : 211,882.24 = 89,019.30 : x
  2. Step 2: Convert to fraction form
    153,537.52/211,882.24 = 89,019.30/x
  3. Step 3: Cross multiply
    153,537.52x = 211,882.24 × 89,019.30
  4. Step 4: Simplify right side
    153,537.52x = 18,861,608,687.23
  5. Step 5: Solve for x
    x = 18,861,608,687.23/153,537.52
  6. Step 6: Final answer
    x = 122,846.90

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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.