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Finding the Fourth Proportional to 347,340.75, 521,011.12 and 98,022.75

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Solution

The fourth proportional to 347,340.75, 521,011.12 and 98,022.75 is: 147,034.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,340.75 : 521,011.12 = 98,022.75 : x
  2. Step 2: Convert to fraction form
    347,340.75/521,011.12 = 98,022.75/x
  3. Step 3: Cross multiply
    347,340.75x = 521,011.12 × 98,022.75
  4. Step 4: Simplify right side
    347,340.75x = 51,070,940,157.92
  5. Step 5: Solve for x
    x = 51,070,940,157.92/347,340.75
  6. Step 6: Final answer
    x = 147,034.12

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1.5x scale

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.