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Finding the Fourth Proportional to 607,693.80, 911,521.08 and 181,233.18

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Solution

The fourth proportional to 607,693.80, 911,521.08 and 181,233.18 is: 271,843.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,693.80 : 911,521.08 = 181,233.18 : x
  2. Step 2: Convert to fraction form
    607,693.80/911,521.08 = 181,233.18/x
  3. Step 3: Cross multiply
    607,693.80x = 911,521.08 × 181,233.18
  4. Step 4: Simplify right side
    607,693.80x = 165,197,863,965.43
  5. Step 5: Solve for x
    x = 165,197,863,965.43/607,693.80
  6. Step 6: Final answer
    x = 271,843.92

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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.