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Finding the Fourth Proportional to 78,766.56, 108,693.52 and 44,770.32

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Solution

The fourth proportional to 78,766.56, 108,693.52 and 44,770.32 is: 61,780.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,766.56 : 108,693.52 = 44,770.32 : x
  2. Step 2: Convert to fraction form
    78,766.56/108,693.52 = 44,770.32/x
  3. Step 3: Cross multiply
    78,766.56x = 108,693.52 × 44,770.32
  4. Step 4: Simplify right side
    78,766.56x = 4,866,243,672.33
  5. Step 5: Solve for x
    x = 4,866,243,672.33/78,766.56
  6. Step 6: Final answer
    x = 61,780.58

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1.5x scale

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.