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Finding the Fourth Proportional to 358,487.80, 537,731.67 and 109,169.80

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Solution

The fourth proportional to 358,487.80, 537,731.67 and 109,169.80 is: 163,754.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,487.80 : 537,731.67 = 109,169.80 : x
  2. Step 2: Convert to fraction form
    358,487.80/537,731.67 = 109,169.80/x
  3. Step 3: Cross multiply
    358,487.80x = 537,731.67 × 109,169.80
  4. Step 4: Simplify right side
    358,487.80x = 58,704,058,867.57
  5. Step 5: Solve for x
    x = 58,704,058,867.57/358,487.80
  6. Step 6: Final answer
    x = 163,754.69

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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.