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Finding the Fourth Proportional to 155,568.60, 214,734.24 and 101,768.40

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Solution

The fourth proportional to 155,568.60, 214,734.24 and 101,768.40 is: 140,472.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,568.60 : 214,734.24 = 101,768.40 : x
  2. Step 2: Convert to fraction form
    155,568.60/214,734.24 = 101,768.40/x
  3. Step 3: Cross multiply
    155,568.60x = 214,734.24 × 101,768.40
  4. Step 4: Simplify right side
    155,568.60x = 21,853,160,030.02
  5. Step 5: Solve for x
    x = 21,853,160,030.02/155,568.60
  6. Step 6: Final answer
    x = 140,472.82

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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.