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Finding the Fourth Proportional to 247,357.49, 341,353.44 and 139,925.24

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Solution

The fourth proportional to 247,357.49, 341,353.44 and 139,925.24 is: 193,096.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,357.49 : 341,353.44 = 139,925.24 : x
  2. Step 2: Convert to fraction form
    247,357.49/341,353.44 = 139,925.24/x
  3. Step 3: Cross multiply
    247,357.49x = 341,353.44 × 139,925.24
  4. Step 4: Simplify right side
    247,357.49x = 47,763,962,016.83
  5. Step 5: Solve for x
    x = 47,763,962,016.83/247,357.49
  6. Step 6: Final answer
    x = 193,096.89

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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.