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Finding the Fourth Proportional to 73,400.39, 101,287.74 and 43,179.87

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Solution

The fourth proportional to 73,400.39, 101,287.74 and 43,179.87 is: 59,585.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,400.39 : 101,287.74 = 43,179.87 : x
  2. Step 2: Convert to fraction form
    73,400.39/101,287.74 = 43,179.87/x
  3. Step 3: Cross multiply
    73,400.39x = 101,287.74 × 43,179.87
  4. Step 4: Simplify right side
    73,400.39x = 4,373,591,445.79
  5. Step 5: Solve for x
    x = 4,373,591,445.79/73,400.39
  6. Step 6: Final answer
    x = 59,585.40

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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.