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Finding the Fourth Proportional to 66,805,365.80, 100,208,048.70 and 41,296,197.80

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Solution

The fourth proportional to 66,805,365.80, 100,208,048.70 and 41,296,197.80 is: 61,944,296.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,805,365.80 : 100,208,048.70 = 41,296,197.80 : x
  2. Step 2: Convert to fraction form
    66,805,365.80/100,208,048.70 = 41,296,197.80/x
  3. Step 3: Cross multiply
    66,805,365.80x = 100,208,048.70 × 41,296,197.80
  4. Step 4: Simplify right side
    66,805,365.80x = 4,138,211,400,267,232.50
  5. Step 5: Solve for x
    x = 4,138,211,400,267,232.50/66,805,365.80
  6. Step 6: Final answer
    x = 61,944,296.70

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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.