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Finding the Fourth Proportional to 77,061, 106,344.30 and 41,733

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Solution

The fourth proportional to 77,061, 106,344.30 and 41,733 is: 57,591.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,061 : 106,344.30 = 41,733 : x
  2. Step 2: Convert to fraction form
    77,061/106,344.30 = 41,733/x
  3. Step 3: Cross multiply
    77,061x = 106,344.30 × 41,733
  4. Step 4: Simplify right side
    77,061x = 4,438,066,671.90
  5. Step 5: Solve for x
    x = 4,438,066,671.90/77,061
  6. Step 6: Final answer
    x = 57,591.60

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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.