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Finding the Fourth Proportional to 78,688.88, 108,587.24 and 44,697.26

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Solution

The fourth proportional to 78,688.88, 108,587.24 and 44,697.26 is: 61,680.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,688.88 : 108,587.24 = 44,697.26 : x
  2. Step 2: Convert to fraction form
    78,688.88/108,587.24 = 44,697.26/x
  3. Step 3: Cross multiply
    78,688.88x = 108,587.24 × 44,697.26
  4. Step 4: Simplify right side
    78,688.88x = 4,853,552,098.96
  5. Step 5: Solve for x
    x = 4,853,552,098.96/78,688.88
  6. Step 6: Final answer
    x = 61,680.28

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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.