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Finding the Fourth Proportional to 61,362.22, 91,987.92 and 42,651.06

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Solution

The fourth proportional to 61,362.22, 91,987.92 and 42,651.06 is: 63,938.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,362.22 : 91,987.92 = 42,651.06 : x
  2. Step 2: Convert to fraction form
    61,362.22/91,987.92 = 42,651.06/x
  3. Step 3: Cross multiply
    61,362.22x = 91,987.92 × 42,651.06
  4. Step 4: Simplify right side
    61,362.22x = 3,923,382,295.20
  5. Step 5: Solve for x
    x = 3,923,382,295.20/61,362.22
  6. Step 6: Final answer
    x = 63,938.08

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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.