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Finding the Fourth Proportional to 68,781.60, 94,829.76 and 44,539.46

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Solution

The fourth proportional to 68,781.60, 94,829.76 and 44,539.46 is: 61,406.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,781.60 : 94,829.76 = 44,539.46 : x
  2. Step 2: Convert to fraction form
    68,781.60/94,829.76 = 44,539.46/x
  3. Step 3: Cross multiply
    68,781.60x = 94,829.76 × 44,539.46
  4. Step 4: Simplify right side
    68,781.60x = 4,223,666,302.33
  5. Step 5: Solve for x
    x = 4,223,666,302.33/68,781.60
  6. Step 6: Final answer
    x = 61,406.92

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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.