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Finding the Fourth Proportional to 101,111.85, 151,691.13 and 30,032.93

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Solution

The fourth proportional to 101,111.85, 151,691.13 and 30,032.93 is: 45,056.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,111.85 : 151,691.13 = 30,032.93 : x
  2. Step 2: Convert to fraction form
    101,111.85/151,691.13 = 30,032.93/x
  3. Step 3: Cross multiply
    101,111.85x = 151,691.13 × 30,032.93
  4. Step 4: Simplify right side
    101,111.85x = 4,555,729,468.14
  5. Step 5: Solve for x
    x = 4,555,729,468.14/101,111.85
  6. Step 6: Final answer
    x = 45,056.34

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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.