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Finding the Fourth Proportional to 169,959.05, 254,708.94 and 64,720.61

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Solution

The fourth proportional to 169,959.05, 254,708.94 and 64,720.61 is: 96,993.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,959.05 : 254,708.94 = 64,720.61 : x
  2. Step 2: Convert to fraction form
    169,959.05/254,708.94 = 64,720.61/x
  3. Step 3: Cross multiply
    169,959.05x = 254,708.94 × 64,720.61
  4. Step 4: Simplify right side
    169,959.05x = 16,484,916,695.71
  5. Step 5: Solve for x
    x = 16,484,916,695.71/169,959.05
  6. Step 6: Final answer
    x = 96,993.47

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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.