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Finding the Fourth Proportional to 121,266.86, 181,775.93 and 54,753.71

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Solution

The fourth proportional to 121,266.86, 181,775.93 and 54,753.71 is: 82,074.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,266.86 : 181,775.93 = 54,753.71 : x
  2. Step 2: Convert to fraction form
    121,266.86/181,775.93 = 54,753.71/x
  3. Step 3: Cross multiply
    121,266.86x = 181,775.93 × 54,753.71
  4. Step 4: Simplify right side
    121,266.86x = 9,952,905,373.55
  5. Step 5: Solve for x
    x = 9,952,905,373.55/121,266.86
  6. Step 6: Final answer
    x = 82,074.41

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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.