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Finding the Fourth Proportional to 169,719.61, 234,187.02 and 98,085.79

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Solution

The fourth proportional to 169,719.61, 234,187.02 and 98,085.79 is: 135,343.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,719.61 : 234,187.02 = 98,085.79 : x
  2. Step 2: Convert to fraction form
    169,719.61/234,187.02 = 98,085.79/x
  3. Step 3: Cross multiply
    169,719.61x = 234,187.02 × 98,085.79
  4. Step 4: Simplify right side
    169,719.61x = 22,970,418,864.45
  5. Step 5: Solve for x
    x = 22,970,418,864.45/169,719.61
  6. Step 6: Final answer
    x = 135,343.34

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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.