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Finding the Fourth Proportional to 440,551.76, 660,828.15 and 120,706.35

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Solution

The fourth proportional to 440,551.76, 660,828.15 and 120,706.35 is: 181,059.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,551.76 : 660,828.15 = 120,706.35 : x
  2. Step 2: Convert to fraction form
    440,551.76/660,828.15 = 120,706.35/x
  3. Step 3: Cross multiply
    440,551.76x = 660,828.15 × 120,706.35
  4. Step 4: Simplify right side
    440,551.76x = 79,766,153,963.75
  5. Step 5: Solve for x
    x = 79,766,153,963.75/440,551.76
  6. Step 6: Final answer
    x = 181,059.66

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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.