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Finding the Fourth Proportional to 81,334.55, 112,241.64 and 45,524.55

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Solution

The fourth proportional to 81,334.55, 112,241.64 and 45,524.55 is: 62,823.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,334.55 : 112,241.64 = 45,524.55 : x
  2. Step 2: Convert to fraction form
    81,334.55/112,241.64 = 45,524.55/x
  3. Step 3: Cross multiply
    81,334.55x = 112,241.64 × 45,524.55
  4. Step 4: Simplify right side
    81,334.55x = 5,109,750,152.26
  5. Step 5: Solve for x
    x = 5,109,750,152.26/81,334.55
  6. Step 6: Final answer
    x = 62,823.86

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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.