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Finding the Fourth Proportional to 137,110.72, 205,663.92 and 73,960.24

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Solution

The fourth proportional to 137,110.72, 205,663.92 and 73,960.24 is: 110,939.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,110.72 : 205,663.92 = 73,960.24 : x
  2. Step 2: Convert to fraction form
    137,110.72/205,663.92 = 73,960.24/x
  3. Step 3: Cross multiply
    137,110.72x = 205,663.92 × 73,960.24
  4. Step 4: Simplify right side
    137,110.72x = 15,210,952,882.54
  5. Step 5: Solve for x
    x = 15,210,952,882.54/137,110.72
  6. Step 6: Final answer
    x = 110,939.19

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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.