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Finding the Fourth Proportional to 163,277.76, 225,323.20 and 91,657.92

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Solution

The fourth proportional to 163,277.76, 225,323.20 and 91,657.92 is: 126,487.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,277.76 : 225,323.20 = 91,657.92 : x
  2. Step 2: Convert to fraction form
    163,277.76/225,323.20 = 91,657.92/x
  3. Step 3: Cross multiply
    163,277.76x = 225,323.20 × 91,657.92
  4. Step 4: Simplify right side
    163,277.76x = 20,652,655,839.74
  5. Step 5: Solve for x
    x = 20,652,655,839.74/163,277.76
  6. Step 6: Final answer
    x = 126,487.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.