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Finding the Fourth Proportional to 163,373.90, 225,444.87 and 91,760.58

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Solution

The fourth proportional to 163,373.90, 225,444.87 and 91,760.58 is: 126,623.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,373.90 : 225,444.87 = 91,760.58 : x
  2. Step 2: Convert to fraction form
    163,373.90/225,444.87 = 91,760.58/x
  3. Step 3: Cross multiply
    163,373.90x = 225,444.87 × 91,760.58
  4. Step 4: Simplify right side
    163,373.90x = 20,686,952,029.22
  5. Step 5: Solve for x
    x = 20,686,952,029.22/163,373.90
  6. Step 6: Final answer
    x = 126,623.36

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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.