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Finding the Fourth Proportional to 78,528.16, 108,366.92 and 44,992

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Solution

The fourth proportional to 78,528.16, 108,366.92 and 44,992 is: 62,087.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,528.16 : 108,366.92 = 44,992 : x
  2. Step 2: Convert to fraction form
    78,528.16/108,366.92 = 44,992/x
  3. Step 3: Cross multiply
    78,528.16x = 108,366.92 × 44,992
  4. Step 4: Simplify right side
    78,528.16x = 4,875,644,464.64
  5. Step 5: Solve for x
    x = 4,875,644,464.64/78,528.16
  6. Step 6: Final answer
    x = 62,087.85

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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.