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Finding the Fourth Proportional to 144,451.87, 216,638.92 and 50,945.47

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Solution

The fourth proportional to 144,451.87, 216,638.92 and 50,945.47 is: 76,404.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,451.87 : 216,638.92 = 50,945.47 : x
  2. Step 2: Convert to fraction form
    144,451.87/216,638.92 = 50,945.47/x
  3. Step 3: Cross multiply
    144,451.87x = 216,638.92 × 50,945.47
  4. Step 4: Simplify right side
    144,451.87x = 11,036,771,599.69
  5. Step 5: Solve for x
    x = 11,036,771,599.69/144,451.87
  6. Step 6: Final answer
    x = 76,404.49

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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.