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Finding the Fourth Proportional to 110,921.91, 153,072.23 and 60,620.91

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Solution

The fourth proportional to 110,921.91, 153,072.23 and 60,620.91 is: 83,656.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,921.91 : 153,072.23 = 60,620.91 : x
  2. Step 2: Convert to fraction form
    110,921.91/153,072.23 = 60,620.91/x
  3. Step 3: Cross multiply
    110,921.91x = 153,072.23 × 60,620.91
  4. Step 4: Simplify right side
    110,921.91x = 9,279,377,575.22
  5. Step 5: Solve for x
    x = 9,279,377,575.22/110,921.91
  6. Step 6: Final answer
    x = 83,656.85

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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.