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Finding the Fourth Proportional to 169,359.71, 254,040 and 57,118.77

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Solution

The fourth proportional to 169,359.71, 254,040 and 57,118.77 is: 85,678.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,359.71 : 254,040 = 57,118.77 : x
  2. Step 2: Convert to fraction form
    169,359.71/254,040 = 57,118.77/x
  3. Step 3: Cross multiply
    169,359.71x = 254,040 × 57,118.77
  4. Step 4: Simplify right side
    169,359.71x = 14,510,452,330.80
  5. Step 5: Solve for x
    x = 14,510,452,330.80/169,359.71
  6. Step 6: Final answer
    x = 85,678.30

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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.