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Finding the Fourth Proportional to 247,191.48, 341,141.72 and 139,762.56

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Solution

The fourth proportional to 247,191.48, 341,141.72 and 139,762.56 is: 192,882.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,191.48 : 341,141.72 = 139,762.56 : x
  2. Step 2: Convert to fraction form
    247,191.48/341,141.72 = 139,762.56/x
  3. Step 3: Cross multiply
    247,191.48x = 341,141.72 × 139,762.56
  4. Step 4: Simplify right side
    247,191.48x = 47,678,840,110.00
  5. Step 5: Solve for x
    x = 47,678,840,110.00/247,191.48
  6. Step 6: Final answer
    x = 192,882.21

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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.