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Finding the Fourth Proportional to 358,992.07, 538,552.13 and 119,120.38

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Solution

The fourth proportional to 358,992.07, 538,552.13 and 119,120.38 is: 178,701.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,992.07 : 538,552.13 = 119,120.38 : x
  2. Step 2: Convert to fraction form
    358,992.07/538,552.13 = 119,120.38/x
  3. Step 3: Cross multiply
    358,992.07x = 538,552.13 × 119,120.38
  4. Step 4: Simplify right side
    358,992.07x = 64,152,534,375.41
  5. Step 5: Solve for x
    x = 64,152,534,375.41/358,992.07
  6. Step 6: Final answer
    x = 178,701.81

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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.