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Finding the Fourth Proportional to 61,464,490.80, 92,201,401.80 and 18,330,327.60

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Solution

The fourth proportional to 61,464,490.80, 92,201,401.80 and 18,330,327.60 is: 27,496,882.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,464,490.80 : 92,201,401.80 = 18,330,327.60 : x
  2. Step 2: Convert to fraction form
    61,464,490.80/92,201,401.80 = 18,330,327.60/x
  3. Step 3: Cross multiply
    61,464,490.80x = 92,201,401.80 × 18,330,327.60
  4. Step 4: Simplify right side
    61,464,490.80x = 1,690,081,900,173,229.75
  5. Step 5: Solve for x
    x = 1,690,081,900,173,229.75/61,464,490.80
  6. Step 6: Final answer
    x = 27,496,882.80

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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.