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Finding the Fourth Proportional to 348,312.21, 522,542.21 and 111,821.01

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Solution

The fourth proportional to 348,312.21, 522,542.21 and 111,821.01 is: 167,755.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,312.21 : 522,542.21 = 111,821.01 : x
  2. Step 2: Convert to fraction form
    348,312.21/522,542.21 = 111,821.01/x
  3. Step 3: Cross multiply
    348,312.21x = 522,542.21 × 111,821.01
  4. Step 4: Simplify right side
    348,312.21x = 58,431,197,130.73
  5. Step 5: Solve for x
    x = 58,431,197,130.73/348,312.21
  6. Step 6: Final answer
    x = 167,755.24

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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.