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Finding the Fourth Proportional to 334,126.78, 501,065.34 and 134,379.70

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Solution

The fourth proportional to 334,126.78, 501,065.34 and 134,379.70 is: 201,519.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,126.78 : 501,065.34 = 134,379.70 : x
  2. Step 2: Convert to fraction form
    334,126.78/501,065.34 = 134,379.70/x
  3. Step 3: Cross multiply
    334,126.78x = 501,065.34 × 134,379.70
  4. Step 4: Simplify right side
    334,126.78x = 67,333,010,069.60
  5. Step 5: Solve for x
    x = 67,333,010,069.60/334,126.78
  6. Step 6: Final answer
    x = 201,519.35

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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.