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Finding the Fourth Proportional to 130,041.88, 179,472.39 and 73,456.90

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Solution

The fourth proportional to 130,041.88, 179,472.39 and 73,456.90 is: 101,378.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,041.88 : 179,472.39 = 73,456.90 : x
  2. Step 2: Convert to fraction form
    130,041.88/179,472.39 = 73,456.90/x
  3. Step 3: Cross multiply
    130,041.88x = 179,472.39 × 73,456.90
  4. Step 4: Simplify right side
    130,041.88x = 13,183,485,404.99
  5. Step 5: Solve for x
    x = 13,183,485,404.99/130,041.88
  6. Step 6: Final answer
    x = 101,378.77

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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.