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Finding the Fourth Proportional to 348,552.72, 522,779.67 and 111,864.78

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Solution

The fourth proportional to 348,552.72, 522,779.67 and 111,864.78 is: 167,781.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,552.72 : 522,779.67 = 111,864.78 : x
  2. Step 2: Convert to fraction form
    348,552.72/522,779.67 = 111,864.78/x
  3. Step 3: Cross multiply
    348,552.72x = 522,779.67 × 111,864.78
  4. Step 4: Simplify right side
    348,552.72x = 58,480,632,773.02
  5. Step 5: Solve for x
    x = 58,480,632,773.02/348,552.72
  6. Step 6: Final answer
    x = 167,781.31

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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.