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Finding the Fourth Proportional to 348,552.30, 522,901.35 and 111,918.90

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Solution

The fourth proportional to 348,552.30, 522,901.35 and 111,918.90 is: 167,901.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,552.30 : 522,901.35 = 111,918.90 : x
  2. Step 2: Convert to fraction form
    348,552.30/522,901.35 = 111,918.90/x
  3. Step 3: Cross multiply
    348,552.30x = 522,901.35 × 111,918.90
  4. Step 4: Simplify right side
    348,552.30x = 58,522,543,900.52
  5. Step 5: Solve for x
    x = 58,522,543,900.52/348,552.30
  6. Step 6: Final answer
    x = 167,901.76

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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.