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Finding the Fourth Proportional to 78,770.59, 108,699.08 and 44,774.35

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Solution

The fourth proportional to 78,770.59, 108,699.08 and 44,774.35 is: 61,786.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,770.59 : 108,699.08 = 44,774.35 : x
  2. Step 2: Convert to fraction form
    78,770.59/108,699.08 = 44,774.35/x
  3. Step 3: Cross multiply
    78,770.59x = 108,699.08 × 44,774.35
  4. Step 4: Simplify right side
    78,770.59x = 4,866,930,156.98
  5. Step 5: Solve for x
    x = 4,866,930,156.98/78,770.59
  6. Step 6: Final answer
    x = 61,786.14

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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.