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Finding the Fourth Proportional to 335,128.84, 502,688.84 and 82,411.52

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Solution

The fourth proportional to 335,128.84, 502,688.84 and 82,411.52 is: 123,616.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,128.84 : 502,688.84 = 82,411.52 : x
  2. Step 2: Convert to fraction form
    335,128.84/502,688.84 = 82,411.52/x
  3. Step 3: Cross multiply
    335,128.84x = 502,688.84 × 82,411.52
  4. Step 4: Simplify right side
    335,128.84x = 41,427,351,391.44
  5. Step 5: Solve for x
    x = 41,427,351,391.44/335,128.84
  6. Step 6: Final answer
    x = 123,616.19

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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.