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Finding the Fourth Proportional to 454,045.80, 680,582.70 and 154,248.60

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Solution

The fourth proportional to 454,045.80, 680,582.70 and 154,248.60 is: 231,207.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,045.80 : 680,582.70 = 154,248.60 : x
  2. Step 2: Convert to fraction form
    454,045.80/680,582.70 = 154,248.60/x
  3. Step 3: Cross multiply
    454,045.80x = 680,582.70 × 154,248.60
  4. Step 4: Simplify right side
    454,045.80x = 104,978,928,659.22
  5. Step 5: Solve for x
    x = 104,978,928,659.22/454,045.80
  6. Step 6: Final answer
    x = 231,207.80

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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.