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Finding the Fourth Proportional to 246,883.95, 340,720.83 and 139,473.70

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Solution

The fourth proportional to 246,883.95, 340,720.83 and 139,473.70 is: 192,485.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,883.95 : 340,720.83 = 139,473.70 : x
  2. Step 2: Convert to fraction form
    246,883.95/340,720.83 = 139,473.70/x
  3. Step 3: Cross multiply
    246,883.95x = 340,720.83 × 139,473.70
  4. Step 4: Simplify right side
    246,883.95x = 47,521,593,975.37
  5. Step 5: Solve for x
    x = 47,521,593,975.37/246,883.95
  6. Step 6: Final answer
    x = 192,485.55

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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.