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Finding the Fourth Proportional to 252,353.84, 348,248.40 and 139,183.88

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Solution

The fourth proportional to 252,353.84, 348,248.40 and 139,183.88 is: 192,073.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,353.84 : 348,248.40 = 139,183.88 : x
  2. Step 2: Convert to fraction form
    252,353.84/348,248.40 = 139,183.88/x
  3. Step 3: Cross multiply
    252,353.84x = 348,248.40 × 139,183.88
  4. Step 4: Simplify right side
    252,353.84x = 48,470,563,515.79
  5. Step 5: Solve for x
    x = 48,470,563,515.79/252,353.84
  6. Step 6: Final answer
    x = 192,073.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.