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Finding the Fourth Proportional to 101,917.33, 140,641.22 and 56,598.21

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Solution

The fourth proportional to 101,917.33, 140,641.22 and 56,598.21 is: 78,102.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,917.33 : 140,641.22 = 56,598.21 : x
  2. Step 2: Convert to fraction form
    101,917.33/140,641.22 = 56,598.21/x
  3. Step 3: Cross multiply
    101,917.33x = 140,641.22 × 56,598.21
  4. Step 4: Simplify right side
    101,917.33x = 7,960,040,318.02
  5. Step 5: Solve for x
    x = 7,960,040,318.02/101,917.33
  6. Step 6: Final answer
    x = 78,102.91

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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.