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Finding the Fourth Proportional to 163,000.74, 244,554.36 and 78,770.58

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Solution

The fourth proportional to 163,000.74, 244,554.36 and 78,770.58 is: 118,181.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,000.74 : 244,554.36 = 78,770.58 : x
  2. Step 2: Convert to fraction form
    163,000.74/244,554.36 = 78,770.58/x
  3. Step 3: Cross multiply
    163,000.74x = 244,554.36 × 78,770.58
  4. Step 4: Simplify right side
    163,000.74x = 19,263,688,778.73
  5. Step 5: Solve for x
    x = 19,263,688,778.73/163,000.74
  6. Step 6: Final answer
    x = 118,181.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.