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Finding the Fourth Proportional to 71,127.40, 106,679.90 and 44,751.40

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Solution

The fourth proportional to 71,127.40, 106,679.90 and 44,751.40 is: 67,120.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,127.40 : 106,679.90 = 44,751.40 : x
  2. Step 2: Convert to fraction form
    71,127.40/106,679.90 = 44,751.40/x
  3. Step 3: Cross multiply
    71,127.40x = 106,679.90 × 44,751.40
  4. Step 4: Simplify right side
    71,127.40x = 4,774,074,876.86
  5. Step 5: Solve for x
    x = 4,774,074,876.86/71,127.40
  6. Step 6: Final answer
    x = 67,120.05

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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.