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Finding the Fourth Proportional to 118,481.40, 177,657.30 and 48,281.40

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Solution

The fourth proportional to 118,481.40, 177,657.30 and 48,281.40 is: 72,395.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,481.40 : 177,657.30 = 48,281.40 : x
  2. Step 2: Convert to fraction form
    118,481.40/177,657.30 = 48,281.40/x
  3. Step 3: Cross multiply
    118,481.40x = 177,657.30 × 48,281.40
  4. Step 4: Simplify right side
    118,481.40x = 8,577,543,164.22
  5. Step 5: Solve for x
    x = 8,577,543,164.22/118,481.40
  6. Step 6: Final answer
    x = 72,395.69

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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.