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Finding the Fourth Proportional to 247,191.98, 341,142.41 and 139,763.06

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Solution

The fourth proportional to 247,191.98, 341,142.41 and 139,763.06 is: 192,882.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,191.98 : 341,142.41 = 139,763.06 : x
  2. Step 2: Convert to fraction form
    247,191.98/341,142.41 = 139,763.06/x
  3. Step 3: Cross multiply
    247,191.98x = 341,142.41 × 139,763.06
  4. Step 4: Simplify right side
    247,191.98x = 47,679,107,117.37
  5. Step 5: Solve for x
    x = 47,679,107,117.37/247,191.98
  6. Step 6: Final answer
    x = 192,882.90

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1.5x scale

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.