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Finding the Fourth Proportional to 121,174.98, 167,197.05 and 73,400.58

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Solution

The fourth proportional to 121,174.98, 167,197.05 and 73,400.58 is: 101,278.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,174.98 : 167,197.05 = 73,400.58 : x
  2. Step 2: Convert to fraction form
    121,174.98/167,197.05 = 73,400.58/x
  3. Step 3: Cross multiply
    121,174.98x = 167,197.05 × 73,400.58
  4. Step 4: Simplify right side
    121,174.98x = 12,272,360,444.29
  5. Step 5: Solve for x
    x = 12,272,360,444.29/121,174.98
  6. Step 6: Final answer
    x = 101,278.01

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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.