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Finding the Fourth Proportional to 121,090.77, 167,060.14 and 75,751.54

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Solution

The fourth proportional to 121,090.77, 167,060.14 and 75,751.54 is: 104,508.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,090.77 : 167,060.14 = 75,751.54 : x
  2. Step 2: Convert to fraction form
    121,090.77/167,060.14 = 75,751.54/x
  3. Step 3: Cross multiply
    121,090.77x = 167,060.14 × 75,751.54
  4. Step 4: Simplify right side
    121,090.77x = 12,655,062,270.59
  5. Step 5: Solve for x
    x = 12,655,062,270.59/121,090.77
  6. Step 6: Final answer
    x = 104,508.89

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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.