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Finding the Fourth Proportional to 266,938.50, 368,375.14 and 146,079.78

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Solution

The fourth proportional to 266,938.50, 368,375.14 and 146,079.78 is: 201,590.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,938.50 : 368,375.14 = 146,079.78 : x
  2. Step 2: Convert to fraction form
    266,938.50/368,375.14 = 146,079.78/x
  3. Step 3: Cross multiply
    266,938.50x = 368,375.14 × 146,079.78
  4. Step 4: Simplify right side
    266,938.50x = 53,812,159,408.67
  5. Step 5: Solve for x
    x = 53,812,159,408.67/266,938.50
  6. Step 6: Final answer
    x = 201,590.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.