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Finding the Fourth Proportional to 147,468.25, 221,203.19 and 36,660.25

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Solution

The fourth proportional to 147,468.25, 221,203.19 and 36,660.25 is: 54,990.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,468.25 : 221,203.19 = 36,660.25 : x
  2. Step 2: Convert to fraction form
    147,468.25/221,203.19 = 36,660.25/x
  3. Step 3: Cross multiply
    147,468.25x = 221,203.19 × 36,660.25
  4. Step 4: Simplify right side
    147,468.25x = 8,109,364,246.20
  5. Step 5: Solve for x
    x = 8,109,364,246.20/147,468.25
  6. Step 6: Final answer
    x = 54,990.58

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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.