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Finding the Fourth Proportional to 169,825.97, 254,853.51 and 69,983.95

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Solution

The fourth proportional to 169,825.97, 254,853.51 and 69,983.95 is: 105,023.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,825.97 : 254,853.51 = 69,983.95 : x
  2. Step 2: Convert to fraction form
    169,825.97/254,853.51 = 69,983.95/x
  3. Step 3: Cross multiply
    169,825.97x = 254,853.51 × 69,983.95
  4. Step 4: Simplify right side
    169,825.97x = 17,835,655,301.16
  5. Step 5: Solve for x
    x = 17,835,655,301.16/169,825.97
  6. Step 6: Final answer
    x = 105,023.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.