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Finding the Fourth Proportional to 61,860.48, 85,365.12 and 33,565.56

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Solution

The fourth proportional to 61,860.48, 85,365.12 and 33,565.56 is: 46,319.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,860.48 : 85,365.12 = 33,565.56 : x
  2. Step 2: Convert to fraction form
    61,860.48/85,365.12 = 33,565.56/x
  3. Step 3: Cross multiply
    61,860.48x = 85,365.12 × 33,565.56
  4. Step 4: Simplify right side
    61,860.48x = 2,865,328,057.27
  5. Step 5: Solve for x
    x = 2,865,328,057.27/61,860.48
  6. Step 6: Final answer
    x = 46,319.20

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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.