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Finding the Fourth Proportional to 138,792.30, 208,060.88 and 50,024.08

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Solution

The fourth proportional to 138,792.30, 208,060.88 and 50,024.08 is: 74,990.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,792.30 : 208,060.88 = 50,024.08 : x
  2. Step 2: Convert to fraction form
    138,792.30/208,060.88 = 50,024.08/x
  3. Step 3: Cross multiply
    138,792.30x = 208,060.88 × 50,024.08
  4. Step 4: Simplify right side
    138,792.30x = 10,408,054,105.99
  5. Step 5: Solve for x
    x = 10,408,054,105.99/138,792.30
  6. Step 6: Final answer
    x = 74,990.14

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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.