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Finding the Fourth Proportional to 348,515.64, 522,841.53 and 111,840.12

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Solution

The fourth proportional to 348,515.64, 522,841.53 and 111,840.12 is: 167,782.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,515.64 : 522,841.53 = 111,840.12 : x
  2. Step 2: Convert to fraction form
    348,515.64/522,841.53 = 111,840.12/x
  3. Step 3: Cross multiply
    348,515.64x = 522,841.53 × 111,840.12
  4. Step 4: Simplify right side
    348,515.64x = 58,474,659,456.18
  5. Step 5: Solve for x
    x = 58,474,659,456.18/348,515.64
  6. Step 6: Final answer
    x = 167,782.02

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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.