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Finding the Fourth Proportional to 72,732.40, 100,327.18 and 44,388.88

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Solution

The fourth proportional to 72,732.40, 100,327.18 and 44,388.88 is: 61,230.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,732.40 : 100,327.18 = 44,388.88 : x
  2. Step 2: Convert to fraction form
    72,732.40/100,327.18 = 44,388.88/x
  3. Step 3: Cross multiply
    72,732.40x = 100,327.18 × 44,388.88
  4. Step 4: Simplify right side
    72,732.40x = 4,453,411,153.76
  5. Step 5: Solve for x
    x = 4,453,411,153.76/72,732.40
  6. Step 6: Final answer
    x = 61,230.09

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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.