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Finding the Fourth Proportional to 73,898.59, 110,864.28 and 21,303.97

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Solution

The fourth proportional to 73,898.59, 110,864.28 and 21,303.97 is: 31,960.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,898.59 : 110,864.28 = 21,303.97 : x
  2. Step 2: Convert to fraction form
    73,898.59/110,864.28 = 21,303.97/x
  3. Step 3: Cross multiply
    73,898.59x = 110,864.28 × 21,303.97
  4. Step 4: Simplify right side
    73,898.59x = 2,361,849,295.19
  5. Step 5: Solve for x
    x = 2,361,849,295.19/73,898.59
  6. Step 6: Final answer
    x = 31,960.68

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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.