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Finding the Fourth Proportional to 440,581.54, 660,860.69 and 125,038.48

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Solution

The fourth proportional to 440,581.54, 660,860.69 and 125,038.48 is: 187,554.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,581.54 : 660,860.69 = 125,038.48 : x
  2. Step 2: Convert to fraction form
    440,581.54/660,860.69 = 125,038.48/x
  3. Step 3: Cross multiply
    440,581.54x = 660,860.69 × 125,038.48
  4. Step 4: Simplify right side
    440,581.54x = 82,633,012,865.05
  5. Step 5: Solve for x
    x = 82,633,012,865.05/440,581.54
  6. Step 6: Final answer
    x = 187,554.42

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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.