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Finding the Fourth Proportional to 163,425.76, 245,212.57 and 83,422.41

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Solution

The fourth proportional to 163,425.76, 245,212.57 and 83,422.41 is: 125,171.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,425.76 : 245,212.57 = 83,422.41 : x
  2. Step 2: Convert to fraction form
    163,425.76/245,212.57 = 83,422.41/x
  3. Step 3: Cross multiply
    163,425.76x = 245,212.57 × 83,422.41
  4. Step 4: Simplify right side
    163,425.76x = 20,456,221,908.52
  5. Step 5: Solve for x
    x = 20,456,221,908.52/163,425.76
  6. Step 6: Final answer
    x = 125,171.35

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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.