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Finding the Fourth Proportional to 335,083.40, 503,013.90 and 202,113.80

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Solution

The fourth proportional to 335,083.40, 503,013.90 and 202,113.80 is: 303,405.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,083.40 : 503,013.90 = 202,113.80 : x
  2. Step 2: Convert to fraction form
    335,083.40/503,013.90 = 202,113.80/x
  3. Step 3: Cross multiply
    335,083.40x = 503,013.90 × 202,113.80
  4. Step 4: Simplify right side
    335,083.40x = 101,666,050,781.82
  5. Step 5: Solve for x
    x = 101,666,050,781.82/335,083.40
  6. Step 6: Final answer
    x = 303,405.21

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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.