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Finding the Fourth Proportional to 121,595.73, 167,789.36 and 70,598.49

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Solution

The fourth proportional to 121,595.73, 167,789.36 and 70,598.49 is: 97,418.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,595.73 : 167,789.36 = 70,598.49 : x
  2. Step 2: Convert to fraction form
    121,595.73/167,789.36 = 70,598.49/x
  3. Step 3: Cross multiply
    121,595.73x = 167,789.36 × 70,598.49
  4. Step 4: Simplify right side
    121,595.73x = 11,845,675,101.07
  5. Step 5: Solve for x
    x = 11,845,675,101.07/121,595.73
  6. Step 6: Final answer
    x = 97,418.51

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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.