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Finding the Fourth Proportional to 80,142.96, 110,595.06 and 44,334.48

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Solution

The fourth proportional to 80,142.96, 110,595.06 and 44,334.48 is: 61,180.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,142.96 : 110,595.06 = 44,334.48 : x
  2. Step 2: Convert to fraction form
    80,142.96/110,595.06 = 44,334.48/x
  3. Step 3: Cross multiply
    80,142.96x = 110,595.06 × 44,334.48
  4. Step 4: Simplify right side
    80,142.96x = 4,903,174,475.67
  5. Step 5: Solve for x
    x = 4,903,174,475.67/80,142.96
  6. Step 6: Final answer
    x = 61,180.35

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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.