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Finding the Fourth Proportional to 341,428.95, 471,169.64 and 186,379.61

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Solution

The fourth proportional to 341,428.95, 471,169.64 and 186,379.61 is: 257,202.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,428.95 : 471,169.64 = 186,379.61 : x
  2. Step 2: Convert to fraction form
    341,428.95/471,169.64 = 186,379.61/x
  3. Step 3: Cross multiply
    341,428.95x = 471,169.64 × 186,379.61
  4. Step 4: Simplify right side
    341,428.95x = 87,816,415,390.91
  5. Step 5: Solve for x
    x = 87,816,415,390.91/341,428.95
  6. Step 6: Final answer
    x = 257,202.61

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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.