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Finding the Fourth Proportional to 246,885.95, 340,723.59 and 139,475.70

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Solution

The fourth proportional to 246,885.95, 340,723.59 and 139,475.70 is: 192,488.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,885.95 : 340,723.59 = 139,475.70 : x
  2. Step 2: Convert to fraction form
    246,885.95/340,723.59 = 139,475.70/x
  3. Step 3: Cross multiply
    246,885.95x = 340,723.59 × 139,475.70
  4. Step 4: Simplify right side
    246,885.95x = 47,522,661,221.76
  5. Step 5: Solve for x
    x = 47,522,661,221.76/246,885.95
  6. Step 6: Final answer
    x = 192,488.32

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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.