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Finding the Fourth Proportional to 335,087.70, 502,339.95 and 202,020.90

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Solution

The fourth proportional to 335,087.70, 502,339.95 and 202,020.90 is: 302,855.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,087.70 : 502,339.95 = 202,020.90 : x
  2. Step 2: Convert to fraction form
    335,087.70/502,339.95 = 202,020.90/x
  3. Step 3: Cross multiply
    335,087.70x = 502,339.95 × 202,020.90
  4. Step 4: Simplify right side
    335,087.70x = 101,483,168,804.96
  5. Step 5: Solve for x
    x = 101,483,168,804.96/335,087.70
  6. Step 6: Final answer
    x = 302,855.55

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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.