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Finding the Fourth Proportional to 333,721.80, 500,625.90 and 165,328.20

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Solution

The fourth proportional to 333,721.80, 500,625.90 and 165,328.20 is: 248,013.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,721.80 : 500,625.90 = 165,328.20 : x
  2. Step 2: Convert to fraction form
    333,721.80/500,625.90 = 165,328.20/x
  3. Step 3: Cross multiply
    333,721.80x = 500,625.90 × 165,328.20
  4. Step 4: Simplify right side
    333,721.80x = 82,767,578,920.38
  5. Step 5: Solve for x
    x = 82,767,578,920.38/333,721.80
  6. Step 6: Final answer
    x = 248,013.70

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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.