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Finding the Fourth Proportional to 80,657.60, 111,307.11 and 44,845.47

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Solution

The fourth proportional to 80,657.60, 111,307.11 and 44,845.47 is: 61,886.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,657.60 : 111,307.11 = 44,845.47 : x
  2. Step 2: Convert to fraction form
    80,657.60/111,307.11 = 44,845.47/x
  3. Step 3: Cross multiply
    80,657.60x = 111,307.11 × 44,845.47
  4. Step 4: Simplify right side
    80,657.60x = 4,991,619,662.29
  5. Step 5: Solve for x
    x = 4,991,619,662.29/80,657.60
  6. Step 6: Final answer
    x = 61,886.54

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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.