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Finding the Fourth Proportional to 51,374.08, 77,105.04 and 36,619.12

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Solution

The fourth proportional to 51,374.08, 77,105.04 and 36,619.12 is: 54,959.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,374.08 : 77,105.04 = 36,619.12 : x
  2. Step 2: Convert to fraction form
    51,374.08/77,105.04 = 36,619.12/x
  3. Step 3: Cross multiply
    51,374.08x = 77,105.04 × 36,619.12
  4. Step 4: Simplify right side
    51,374.08x = 2,823,518,712.36
  5. Step 5: Solve for x
    x = 2,823,518,712.36/51,374.08
  6. Step 6: Final answer
    x = 54,959.99

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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.