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Finding the Fourth Proportional to 139,996.95, 193,195.98 and 76,334.74

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Solution

The fourth proportional to 139,996.95, 193,195.98 and 76,334.74 is: 105,342.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,996.95 : 193,195.98 = 76,334.74 : x
  2. Step 2: Convert to fraction form
    139,996.95/193,195.98 = 76,334.74/x
  3. Step 3: Cross multiply
    139,996.95x = 193,195.98 × 76,334.74
  4. Step 4: Simplify right side
    139,996.95x = 14,747,564,902.35
  5. Step 5: Solve for x
    x = 14,747,564,902.35/139,996.95
  6. Step 6: Final answer
    x = 105,342.04

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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.