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Finding the Fourth Proportional to 118,740.66, 178,110.72 and 48,620.04

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Solution

The fourth proportional to 118,740.66, 178,110.72 and 48,620.04 is: 72,929.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,740.66 : 178,110.72 = 48,620.04 : x
  2. Step 2: Convert to fraction form
    118,740.66/178,110.72 = 48,620.04/x
  3. Step 3: Cross multiply
    118,740.66x = 178,110.72 × 48,620.04
  4. Step 4: Simplify right side
    118,740.66x = 8,659,750,330.83
  5. Step 5: Solve for x
    x = 8,659,750,330.83/118,740.66
  6. Step 6: Final answer
    x = 72,929.95

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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.