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Finding the Fourth Proportional to 272,030.90, 408,046.35 and 147,614.90

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Solution

The fourth proportional to 272,030.90, 408,046.35 and 147,614.90 is: 221,422.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,030.90 : 408,046.35 = 147,614.90 : x
  2. Step 2: Convert to fraction form
    272,030.90/408,046.35 = 147,614.90/x
  3. Step 3: Cross multiply
    272,030.90x = 408,046.35 × 147,614.90
  4. Step 4: Simplify right side
    272,030.90x = 60,233,721,150.62
  5. Step 5: Solve for x
    x = 60,233,721,150.62/272,030.90
  6. Step 6: Final answer
    x = 221,422.35

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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.