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Finding the Fourth Proportional to 124,549.78, 171,882.48 and 70,842.52

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Solution

The fourth proportional to 124,549.78, 171,882.48 and 70,842.52 is: 97,764.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,549.78 : 171,882.48 = 70,842.52 : x
  2. Step 2: Convert to fraction form
    124,549.78/171,882.48 = 70,842.52/x
  3. Step 3: Cross multiply
    124,549.78x = 171,882.48 × 70,842.52
  4. Step 4: Simplify right side
    124,549.78x = 12,176,588,027.05
  5. Step 5: Solve for x
    x = 12,176,588,027.05/124,549.78
  6. Step 6: Final answer
    x = 97,764.83

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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.