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Finding the Fourth Proportional to 118,872.99, 178,134.51 and 52,252.11

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Solution

The fourth proportional to 118,872.99, 178,134.51 and 52,252.11 is: 78,301.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,872.99 : 178,134.51 = 52,252.11 : x
  2. Step 2: Convert to fraction form
    118,872.99/178,134.51 = 52,252.11/x
  3. Step 3: Cross multiply
    118,872.99x = 178,134.51 × 52,252.11
  4. Step 4: Simplify right side
    118,872.99x = 9,307,904,011.32
  5. Step 5: Solve for x
    x = 9,307,904,011.32/118,872.99
  6. Step 6: Final answer
    x = 78,301.25

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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.