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Finding the Fourth Proportional to 169,259.58, 253,894.34 and 74,440.58

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Solution

The fourth proportional to 169,259.58, 253,894.34 and 74,440.58 is: 111,663.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,259.58 : 253,894.34 = 74,440.58 : x
  2. Step 2: Convert to fraction form
    169,259.58/253,894.34 = 74,440.58/x
  3. Step 3: Cross multiply
    169,259.58x = 253,894.34 × 74,440.58
  4. Step 4: Simplify right side
    169,259.58x = 18,900,040,844.95
  5. Step 5: Solve for x
    x = 18,900,040,844.95/169,259.58
  6. Step 6: Final answer
    x = 111,663.05

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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.