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Finding the Fourth Proportional to 79,588,640.80, 119,508,932.40 and 60,441,018.40

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Solution

The fourth proportional to 79,588,640.80, 119,508,932.40 and 60,441,018.40 is: 90,757,192.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,588,640.80 : 119,508,932.40 = 60,441,018.40 : x
  2. Step 2: Convert to fraction form
    79,588,640.80/119,508,932.40 = 60,441,018.40/x
  3. Step 3: Cross multiply
    79,588,640.80x = 119,508,932.40 × 60,441,018.40
  4. Step 4: Simplify right side
    79,588,640.80x = 7,223,241,582,152,756
  5. Step 5: Solve for x
    x = 7,223,241,582,152,756/79,588,640.80
  6. Step 6: Final answer
    x = 90,757,192.35

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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.