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Finding the Fourth Proportional to 38,649,873.20, 57,974,809.80 and 36,760,305.20

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Solution

The fourth proportional to 38,649,873.20, 57,974,809.80 and 36,760,305.20 is: 55,140,457.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,649,873.20 : 57,974,809.80 = 36,760,305.20 : x
  2. Step 2: Convert to fraction form
    38,649,873.20/57,974,809.80 = 36,760,305.20/x
  3. Step 3: Cross multiply
    38,649,873.20x = 57,974,809.80 × 36,760,305.20
  4. Step 4: Simplify right side
    38,649,873.20x = 2,131,171,702,159,951
  5. Step 5: Solve for x
    x = 2,131,171,702,159,951/38,649,873.20
  6. Step 6: Final answer
    x = 55,140,457.80

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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.