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Finding the Fourth Proportional to 174,602.79, 240,971.76 and 98,121.78

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Solution

The fourth proportional to 174,602.79, 240,971.76 and 98,121.78 is: 135,419.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,602.79 : 240,971.76 = 98,121.78 : x
  2. Step 2: Convert to fraction form
    174,602.79/240,971.76 = 98,121.78/x
  3. Step 3: Cross multiply
    174,602.79x = 240,971.76 × 98,121.78
  4. Step 4: Simplify right side
    174,602.79x = 23,644,578,020.93
  5. Step 5: Solve for x
    x = 23,644,578,020.93/174,602.79
  6. Step 6: Final answer
    x = 135,419.25

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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.