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Finding the Fourth Proportional to 83,619.76, 115,394.88 and 45,893.74

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Solution

The fourth proportional to 83,619.76, 115,394.88 and 45,893.74 is: 63,333.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,619.76 : 115,394.88 = 45,893.74 : x
  2. Step 2: Convert to fraction form
    83,619.76/115,394.88 = 45,893.74/x
  3. Step 3: Cross multiply
    83,619.76x = 115,394.88 × 45,893.74
  4. Step 4: Simplify right side
    83,619.76x = 5,295,902,620.05
  5. Step 5: Solve for x
    x = 5,295,902,620.05/83,619.76
  6. Step 6: Final answer
    x = 63,333.15

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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.