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Finding the Fourth Proportional to 347,282.64, 520,944.12 and 134,051.76

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Solution

The fourth proportional to 347,282.64, 520,944.12 and 134,051.76 is: 201,085.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,282.64 : 520,944.12 = 134,051.76 : x
  2. Step 2: Convert to fraction form
    347,282.64/520,944.12 = 134,051.76/x
  3. Step 3: Cross multiply
    347,282.64x = 520,944.12 × 134,051.76
  4. Step 4: Simplify right side
    347,282.64x = 69,833,476,147.65
  5. Step 5: Solve for x
    x = 69,833,476,147.65/347,282.64
  6. Step 6: Final answer
    x = 201,085.42

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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.