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Finding the Fourth Proportional to 73,668.58, 110,580.17 and 65,288.70

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Solution

The fourth proportional to 73,668.58, 110,580.17 and 65,288.70 is: 98,001.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,668.58 : 110,580.17 = 65,288.70 : x
  2. Step 2: Convert to fraction form
    73,668.58/110,580.17 = 65,288.70/x
  3. Step 3: Cross multiply
    73,668.58x = 110,580.17 × 65,288.70
  4. Step 4: Simplify right side
    73,668.58x = 7,219,635,641.40
  5. Step 5: Solve for x
    x = 7,219,635,641.40/73,668.58
  6. Step 6: Final answer
    x = 98,001.56

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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.