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Finding the Fourth Proportional to 335,071.65, 502,606.49 and 135,389.73

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Solution

The fourth proportional to 335,071.65, 502,606.49 and 135,389.73 is: 203,084.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,071.65 : 502,606.49 = 135,389.73 : x
  2. Step 2: Convert to fraction form
    335,071.65/502,606.49 = 135,389.73/x
  3. Step 3: Cross multiply
    335,071.65x = 502,606.49 × 135,389.73
  4. Step 4: Simplify right side
    335,071.65x = 68,047,756,300.40
  5. Step 5: Solve for x
    x = 68,047,756,300.40/335,071.65
  6. Step 6: Final answer
    x = 203,084.19

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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.