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Finding the Fourth Proportional to 121,458.96, 182,428.56 and 73,524.48

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Solution

The fourth proportional to 121,458.96, 182,428.56 and 73,524.48 is: 110,432.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,458.96 : 182,428.56 = 73,524.48 : x
  2. Step 2: Convert to fraction form
    121,458.96/182,428.56 = 73,524.48/x
  3. Step 3: Cross multiply
    121,458.96x = 182,428.56 × 73,524.48
  4. Step 4: Simplify right side
    121,458.96x = 13,412,965,011.15
  5. Step 5: Solve for x
    x = 13,412,965,011.15/121,458.96
  6. Step 6: Final answer
    x = 110,432.08

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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.