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Finding the Fourth Proportional to 172,317.12, 237,818.88 and 96,864

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Solution

The fourth proportional to 172,317.12, 237,818.88 and 96,864 is: 133,684.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,317.12 : 237,818.88 = 96,864 : x
  2. Step 2: Convert to fraction form
    172,317.12/237,818.88 = 96,864/x
  3. Step 3: Cross multiply
    172,317.12x = 237,818.88 × 96,864
  4. Step 4: Simplify right side
    172,317.12x = 23,036,087,992.32
  5. Step 5: Solve for x
    x = 23,036,087,992.32/172,317.12
  6. Step 6: Final answer
    x = 133,684.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.