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Finding the Fourth Proportional to 140,208.84, 193,356.72 and 92,378.88

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Solution

The fourth proportional to 140,208.84, 193,356.72 and 92,378.88 is: 127,396.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,208.84 : 193,356.72 = 92,378.88 : x
  2. Step 2: Convert to fraction form
    140,208.84/193,356.72 = 92,378.88/x
  3. Step 3: Cross multiply
    140,208.84x = 193,356.72 × 92,378.88
  4. Step 4: Simplify right side
    140,208.84x = 17,862,077,234.07
  5. Step 5: Solve for x
    x = 17,862,077,234.07/140,208.84
  6. Step 6: Final answer
    x = 127,396.23

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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.