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Finding the Fourth Proportional to 121,171.98, 167,192.91 and 73,397.58

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Solution

The fourth proportional to 121,171.98, 167,192.91 and 73,397.58 is: 101,273.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,171.98 : 167,192.91 = 73,397.58 : x
  2. Step 2: Convert to fraction form
    121,171.98/167,192.91 = 73,397.58/x
  3. Step 3: Cross multiply
    121,171.98x = 167,192.91 × 73,397.58
  4. Step 4: Simplify right side
    121,171.98x = 12,271,554,360.18
  5. Step 5: Solve for x
    x = 12,271,554,360.18/121,171.98
  6. Step 6: Final answer
    x = 101,273.86

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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.