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Finding the Fourth Proportional to 139,566,637.67, 209,372,697.63 and 41,208,287.36

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Solution

The fourth proportional to 139,566,637.67, 209,372,697.63 and 41,208,287.36 is: 61,819,145.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,566,637.67 : 209,372,697.63 = 41,208,287.36 : x
  2. Step 2: Convert to fraction form
    139,566,637.67/209,372,697.63 = 41,208,287.36/x
  3. Step 3: Cross multiply
    139,566,637.67x = 209,372,697.63 × 41,208,287.36
  4. Step 4: Simplify right side
    139,566,637.67x = 8,627,890,288,228,567
  5. Step 5: Solve for x
    x = 8,627,890,288,228,567/139,566,637.67
  6. Step 6: Final answer
    x = 61,819,145.55

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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.