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Finding the Fourth Proportional to 328,767.84, 492,715.81 and 168,837.32

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Solution

The fourth proportional to 328,767.84, 492,715.81 and 168,837.32 is: 253,032.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,767.84 : 492,715.81 = 168,837.32 : x
  2. Step 2: Convert to fraction form
    328,767.84/492,715.81 = 168,837.32/x
  3. Step 3: Cross multiply
    328,767.84x = 492,715.81 × 168,837.32
  4. Step 4: Simplify right side
    328,767.84x = 83,188,816,882.03
  5. Step 5: Solve for x
    x = 83,188,816,882.03/328,767.84
  6. Step 6: Final answer
    x = 253,032.10

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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.