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Finding the Fourth Proportional to 252,168.78, 378,047.04 and 117,316.91

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Solution

The fourth proportional to 252,168.78, 378,047.04 and 117,316.91 is: 175,879.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,168.78 : 378,047.04 = 117,316.91 : x
  2. Step 2: Convert to fraction form
    252,168.78/378,047.04 = 117,316.91/x
  3. Step 3: Cross multiply
    252,168.78x = 378,047.04 × 117,316.91
  4. Step 4: Simplify right side
    252,168.78x = 44,351,310,567.45
  5. Step 5: Solve for x
    x = 44,351,310,567.45/252,168.78
  6. Step 6: Final answer
    x = 175,879.47

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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.