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Finding the Fourth Proportional to 171,449.74, 236,580.42 and 98,851.83

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Solution

The fourth proportional to 171,449.74, 236,580.42 and 98,851.83 is: 136,403.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,449.74 : 236,580.42 = 98,851.83 : x
  2. Step 2: Convert to fraction form
    171,449.74/236,580.42 = 98,851.83/x
  3. Step 3: Cross multiply
    171,449.74x = 236,580.42 × 98,851.83
  4. Step 4: Simplify right side
    171,449.74x = 23,386,407,459.17
  5. Step 5: Solve for x
    x = 23,386,407,459.17/171,449.74
  6. Step 6: Final answer
    x = 136,403.87

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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.