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Finding the Fourth Proportional to 27,202,641.20, 40,803,961.80 and 10,161,099.80

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Solution

The fourth proportional to 27,202,641.20, 40,803,961.80 and 10,161,099.80 is: 15,241,649.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,202,641.20 : 40,803,961.80 = 10,161,099.80 : x
  2. Step 2: Convert to fraction form
    27,202,641.20/40,803,961.80 = 10,161,099.80/x
  3. Step 3: Cross multiply
    27,202,641.20x = 40,803,961.80 × 10,161,099.80
  4. Step 4: Simplify right side
    27,202,641.20x = 414,613,128,085,187.62
  5. Step 5: Solve for x
    x = 414,613,128,085,187.62/27,202,641.20
  6. Step 6: Final answer
    x = 15,241,649.70

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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.