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Finding the Fourth Proportional to 308,855.88, 463,377.90 and 151,061.40

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Solution

The fourth proportional to 308,855.88, 463,377.90 and 151,061.40 is: 226,638.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,855.88 : 463,377.90 = 151,061.40 : x
  2. Step 2: Convert to fraction form
    308,855.88/463,377.90 = 151,061.40/x
  3. Step 3: Cross multiply
    308,855.88x = 463,377.90 × 151,061.40
  4. Step 4: Simplify right side
    308,855.88x = 69,998,514,303.06
  5. Step 5: Solve for x
    x = 69,998,514,303.06/308,855.88
  6. Step 6: Final answer
    x = 226,638.11

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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.