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Finding the Fourth Proportional to 147,678.88, 221,512.56 and 49,182.88

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Solution

The fourth proportional to 147,678.88, 221,512.56 and 49,182.88 is: 73,772.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,678.88 : 221,512.56 = 49,182.88 : x
  2. Step 2: Convert to fraction form
    147,678.88/221,512.56 = 49,182.88/x
  3. Step 3: Cross multiply
    147,678.88x = 221,512.56 × 49,182.88
  4. Step 4: Simplify right side
    147,678.88x = 10,894,625,656.97
  5. Step 5: Solve for x
    x = 10,894,625,656.97/147,678.88
  6. Step 6: Final answer
    x = 73,772.40

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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.