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Finding the Fourth Proportional to 61,641,993.71, 85,065,739.03 and 35,536,387.07

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Solution

The fourth proportional to 61,641,993.71, 85,065,739.03 and 35,536,387.07 is: 49,040,091.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,641,993.71 : 85,065,739.03 = 35,536,387.07 : x
  2. Step 2: Convert to fraction form
    61,641,993.71/85,065,739.03 = 35,536,387.07/x
  3. Step 3: Cross multiply
    61,641,993.71x = 85,065,739.03 × 35,536,387.07
  4. Step 4: Simplify right side
    61,641,993.71x = 3,022,929,028,565,686.50
  5. Step 5: Solve for x
    x = 3,022,929,028,565,686.50/61,641,993.71
  6. Step 6: Final answer
    x = 49,040,091.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.