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Finding the Fourth Proportional to 121,970.56, 182,882.94 and 47,028.56

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Solution

The fourth proportional to 121,970.56, 182,882.94 and 47,028.56 is: 70,514.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,970.56 : 182,882.94 = 47,028.56 : x
  2. Step 2: Convert to fraction form
    121,970.56/182,882.94 = 47,028.56/x
  3. Step 3: Cross multiply
    121,970.56x = 182,882.94 × 47,028.56
  4. Step 4: Simplify right side
    121,970.56x = 8,600,721,316.77
  5. Step 5: Solve for x
    x = 8,600,721,316.77/121,970.56
  6. Step 6: Final answer
    x = 70,514.73

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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.