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Finding the Fourth Proportional to 316,488.98, 436,754.76 and 173,249.12

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Solution

The fourth proportional to 316,488.98, 436,754.76 and 173,249.12 is: 239,083.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,488.98 : 436,754.76 = 173,249.12 : x
  2. Step 2: Convert to fraction form
    316,488.98/436,754.76 = 173,249.12/x
  3. Step 3: Cross multiply
    316,488.98x = 436,754.76 × 173,249.12
  4. Step 4: Simplify right side
    316,488.98x = 75,667,377,825.81
  5. Step 5: Solve for x
    x = 75,667,377,825.81/316,488.98
  6. Step 6: Final answer
    x = 239,083.77

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1.5x scale

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.