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Finding the Fourth Proportional to 73,594.71, 110,389.55 and 21,004.20

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Solution

The fourth proportional to 73,594.71, 110,389.55 and 21,004.20 is: 31,505.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,594.71 : 110,389.55 = 21,004.20 : x
  2. Step 2: Convert to fraction form
    73,594.71/110,389.55 = 21,004.20/x
  3. Step 3: Cross multiply
    73,594.71x = 110,389.55 × 21,004.20
  4. Step 4: Simplify right side
    73,594.71x = 2,318,644,081.09
  5. Step 5: Solve for x
    x = 2,318,644,081.09/73,594.71
  6. Step 6: Final answer
    x = 31,505.58

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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.