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Finding the Fourth Proportional to 169,969.30, 254,953.95 and 159,471.70

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Solution

The fourth proportional to 169,969.30, 254,953.95 and 159,471.70 is: 239,207.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,969.30 : 254,953.95 = 159,471.70 : x
  2. Step 2: Convert to fraction form
    169,969.30/254,953.95 = 159,471.70/x
  3. Step 3: Cross multiply
    169,969.30x = 254,953.95 × 159,471.70
  4. Step 4: Simplify right side
    169,969.30x = 40,657,939,828.22
  5. Step 5: Solve for x
    x = 40,657,939,828.22/169,969.30
  6. Step 6: Final answer
    x = 239,207.55

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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.