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Finding the Fourth Proportional to 348,541.80, 522,801.90 and 99,223.80

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Solution

The fourth proportional to 348,541.80, 522,801.90 and 99,223.80 is: 148,832.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,541.80 : 522,801.90 = 99,223.80 : x
  2. Step 2: Convert to fraction form
    348,541.80/522,801.90 = 99,223.80/x
  3. Step 3: Cross multiply
    348,541.80x = 522,801.90 × 99,223.80
  4. Step 4: Simplify right side
    348,541.80x = 51,874,391,165.22
  5. Step 5: Solve for x
    x = 51,874,391,165.22/348,541.80
  6. Step 6: Final answer
    x = 148,832.63

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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.