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Finding the Fourth Proportional to 73,177.38, 100,986.78 and 41,345.64

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Solution

The fourth proportional to 73,177.38, 100,986.78 and 41,345.64 is: 57,058.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,177.38 : 100,986.78 = 41,345.64 : x
  2. Step 2: Convert to fraction form
    73,177.38/100,986.78 = 41,345.64/x
  3. Step 3: Cross multiply
    73,177.38x = 100,986.78 × 41,345.64
  4. Step 4: Simplify right side
    73,177.38x = 4,175,363,050.64
  5. Step 5: Solve for x
    x = 4,175,363,050.64/73,177.38
  6. Step 6: Final answer
    x = 57,058.11

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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.