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Finding the Fourth Proportional to 101,344.80, 152,017.20 and 82,682.40

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Solution

The fourth proportional to 101,344.80, 152,017.20 and 82,682.40 is: 124,023.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,344.80 : 152,017.20 = 82,682.40 : x
  2. Step 2: Convert to fraction form
    101,344.80/152,017.20 = 82,682.40/x
  3. Step 3: Cross multiply
    101,344.80x = 152,017.20 × 82,682.40
  4. Step 4: Simplify right side
    101,344.80x = 12,569,146,937.28
  5. Step 5: Solve for x
    x = 12,569,146,937.28/101,344.80
  6. Step 6: Final answer
    x = 124,023.60

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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.