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Finding the Fourth Proportional to 77,376.66, 116,071.13 and 33,003.78

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Solution

The fourth proportional to 77,376.66, 116,071.13 and 33,003.78 is: 49,508.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,376.66 : 116,071.13 = 33,003.78 : x
  2. Step 2: Convert to fraction form
    77,376.66/116,071.13 = 33,003.78/x
  3. Step 3: Cross multiply
    77,376.66x = 116,071.13 × 33,003.78
  4. Step 4: Simplify right side
    77,376.66x = 3,830,786,038.87
  5. Step 5: Solve for x
    x = 3,830,786,038.87/77,376.66
  6. Step 6: Final answer
    x = 49,508.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.