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Finding the Fourth Proportional to 78,927.12, 108,919.06 and 44,937

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Solution

The fourth proportional to 78,927.12, 108,919.06 and 44,937 is: 62,012.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,927.12 : 108,919.06 = 44,937 : x
  2. Step 2: Convert to fraction form
    78,927.12/108,919.06 = 44,937/x
  3. Step 3: Cross multiply
    78,927.12x = 108,919.06 × 44,937
  4. Step 4: Simplify right side
    78,927.12x = 4,894,495,799.22
  5. Step 5: Solve for x
    x = 4,894,495,799.22/78,927.12
  6. Step 6: Final answer
    x = 62,012.85

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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.