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Finding the Fourth Proportional to 40,802,839.80, 61,204,259.70 and 10,510,702.80

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Solution

The fourth proportional to 40,802,839.80, 61,204,259.70 and 10,510,702.80 is: 15,766,054.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,802,839.80 : 61,204,259.70 = 10,510,702.80 : x
  2. Step 2: Convert to fraction form
    40,802,839.80/61,204,259.70 = 10,510,702.80/x
  3. Step 3: Cross multiply
    40,802,839.80x = 61,204,259.70 × 10,510,702.80
  4. Step 4: Simplify right side
    40,802,839.80x = 643,299,783,800,717.25
  5. Step 5: Solve for x
    x = 643,299,783,800,717.25/40,802,839.80
  6. Step 6: Final answer
    x = 15,766,054.20

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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.