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Finding the Fourth Proportional to 61,745.32, 85,200.38 and 39,044.26

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Solution

The fourth proportional to 61,745.32, 85,200.38 and 39,044.26 is: 53,875.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,745.32 : 85,200.38 = 39,044.26 : x
  2. Step 2: Convert to fraction form
    61,745.32/85,200.38 = 39,044.26/x
  3. Step 3: Cross multiply
    61,745.32x = 85,200.38 × 39,044.26
  4. Step 4: Simplify right side
    61,745.32x = 3,326,585,788.82
  5. Step 5: Solve for x
    x = 3,326,585,788.82/61,745.32
  6. Step 6: Final answer
    x = 53,875.92

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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.