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Finding the Fourth Proportional to 347,907.70, 521,697.06 and 134,775.44

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Solution

The fourth proportional to 347,907.70, 521,697.06 and 134,775.44 is: 202,099.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,907.70 : 521,697.06 = 134,775.44 : x
  2. Step 2: Convert to fraction form
    347,907.70/521,697.06 = 134,775.44/x
  3. Step 3: Cross multiply
    347,907.70x = 521,697.06 × 134,775.44
  4. Step 4: Simplify right side
    347,907.70x = 70,311,950,808.21
  5. Step 5: Solve for x
    x = 70,311,950,808.21/347,907.70
  6. Step 6: Final answer
    x = 202,099.44

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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.