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Finding the Fourth Proportional to 70,008,356.80, 104,760,592.80 and 47,333,540.80

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Solution

The fourth proportional to 70,008,356.80, 104,760,592.80 and 47,333,540.80 is: 70,829,969.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,008,356.80 : 104,760,592.80 = 47,333,540.80 : x
  2. Step 2: Convert to fraction form
    70,008,356.80/104,760,592.80 = 47,333,540.80/x
  3. Step 3: Cross multiply
    70,008,356.80x = 104,760,592.80 × 47,333,540.80
  4. Step 4: Simplify right side
    70,008,356.80x = 4,958,689,793,530,986
  5. Step 5: Solve for x
    x = 4,958,689,793,530,986/70,008,356.80
  6. Step 6: Final answer
    x = 70,829,969.74

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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.