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Finding the Fourth Proportional to 68,170.60, 101,708.33 and 60,686.20

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Solution

The fourth proportional to 68,170.60, 101,708.33 and 60,686.20 is: 90,541.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,170.60 : 101,708.33 = 60,686.20 : x
  2. Step 2: Convert to fraction form
    68,170.60/101,708.33 = 60,686.20/x
  3. Step 3: Cross multiply
    68,170.60x = 101,708.33 × 60,686.20
  4. Step 4: Simplify right side
    68,170.60x = 6,172,292,056.05
  5. Step 5: Solve for x
    x = 6,172,292,056.05/68,170.60
  6. Step 6: Final answer
    x = 90,541.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.