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Finding the Fourth Proportional to 83,508.52, 115,241.70 and 45,783.40

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Solution

The fourth proportional to 83,508.52, 115,241.70 and 45,783.40 is: 63,181.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,508.52 : 115,241.70 = 45,783.40 : x
  2. Step 2: Convert to fraction form
    83,508.52/115,241.70 = 45,783.40/x
  3. Step 3: Cross multiply
    83,508.52x = 115,241.70 × 45,783.40
  4. Step 4: Simplify right side
    83,508.52x = 5,276,156,847.78
  5. Step 5: Solve for x
    x = 5,276,156,847.78/83,508.52
  6. Step 6: Final answer
    x = 63,181.06

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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.