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Finding the Fourth Proportional to 118,766.72, 178,149.72 and 48,646.04

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Solution

The fourth proportional to 118,766.72, 178,149.72 and 48,646.04 is: 72,968.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,766.72 : 178,149.72 = 48,646.04 : x
  2. Step 2: Convert to fraction form
    118,766.72/178,149.72 = 48,646.04/x
  3. Step 3: Cross multiply
    118,766.72x = 178,149.72 × 48,646.04
  4. Step 4: Simplify right side
    118,766.72x = 8,666,278,405.11
  5. Step 5: Solve for x
    x = 8,666,278,405.11/118,766.72
  6. Step 6: Final answer
    x = 72,968.91

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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.