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Finding the Fourth Proportional to 80,693,098.76, 111,351,939.54 and 45,894,254.60

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Solution

The fourth proportional to 80,693,098.76, 111,351,939.54 and 45,894,254.60 is: 63,331,491.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,693,098.76 : 111,351,939.54 = 45,894,254.60 : x
  2. Step 2: Convert to fraction form
    80,693,098.76/111,351,939.54 = 45,894,254.60/x
  3. Step 3: Cross multiply
    80,693,098.76x = 111,351,939.54 × 45,894,254.60
  4. Step 4: Simplify right side
    80,693,098.76x = 5,110,414,263,452,567
  5. Step 5: Solve for x
    x = 5,110,414,263,452,567/80,693,098.76
  6. Step 6: Final answer
    x = 63,331,491.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.