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Finding the Fourth Proportional to 124,018.72, 186,023.91 and 53,898.04

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Solution

The fourth proportional to 124,018.72, 186,023.91 and 53,898.04 is: 80,845.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,018.72 : 186,023.91 = 53,898.04 : x
  2. Step 2: Convert to fraction form
    124,018.72/186,023.91 = 53,898.04/x
  3. Step 3: Cross multiply
    124,018.72x = 186,023.91 × 53,898.04
  4. Step 4: Simplify right side
    124,018.72x = 10,026,324,142.14
  5. Step 5: Solve for x
    x = 10,026,324,142.14/124,018.72
  6. Step 6: Final answer
    x = 80,845.25

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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.