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Finding the Fourth Proportional to 161,287.80, 241,874.10 and 56,110.20

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Solution

The fourth proportional to 161,287.80, 241,874.10 and 56,110.20 is: 84,145.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,287.80 : 241,874.10 = 56,110.20 : x
  2. Step 2: Convert to fraction form
    161,287.80/241,874.10 = 56,110.20/x
  3. Step 3: Cross multiply
    161,287.80x = 241,874.10 × 56,110.20
  4. Step 4: Simplify right side
    161,287.80x = 13,571,604,125.82
  5. Step 5: Solve for x
    x = 13,571,604,125.82/161,287.80
  6. Step 6: Final answer
    x = 84,145.26

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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.