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Finding the Fourth Proportional to 73,398.59, 110,139.45 and 31,274.24

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Solution

The fourth proportional to 73,398.59, 110,139.45 and 31,274.24 is: 46,929.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,398.59 : 110,139.45 = 31,274.24 : x
  2. Step 2: Convert to fraction form
    73,398.59/110,139.45 = 31,274.24/x
  3. Step 3: Cross multiply
    73,398.59x = 110,139.45 × 31,274.24
  4. Step 4: Simplify right side
    73,398.59x = 3,444,526,924.79
  5. Step 5: Solve for x
    x = 3,444,526,924.79/73,398.59
  6. Step 6: Final answer
    x = 46,929.06

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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.