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Finding the Fourth Proportional to 140,416.84, 193,774.80 and 76,754.68

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Solution

The fourth proportional to 140,416.84, 193,774.80 and 76,754.68 is: 105,921.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,416.84 : 193,774.80 = 76,754.68 : x
  2. Step 2: Convert to fraction form
    140,416.84/193,774.80 = 76,754.68/x
  3. Step 3: Cross multiply
    140,416.84x = 193,774.80 × 76,754.68
  4. Step 4: Simplify right side
    140,416.84x = 14,873,122,766.06
  5. Step 5: Solve for x
    x = 14,873,122,766.06/140,416.84
  6. Step 6: Final answer
    x = 105,921.22

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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.