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Finding the Fourth Proportional to 78,853.82, 108,820.05 and 44,860.96

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Solution

The fourth proportional to 78,853.82, 108,820.05 and 44,860.96 is: 61,909.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,853.82 : 108,820.05 = 44,860.96 : x
  2. Step 2: Convert to fraction form
    78,853.82/108,820.05 = 44,860.96/x
  3. Step 3: Cross multiply
    78,853.82x = 108,820.05 × 44,860.96
  4. Step 4: Simplify right side
    78,853.82x = 4,881,771,638.20
  5. Step 5: Solve for x
    x = 4,881,771,638.20/78,853.82
  6. Step 6: Final answer
    x = 61,909.13

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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.