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Finding the Fourth Proportional to 194,493.95, 268,401.42 and 105,069.95

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Solution

The fourth proportional to 194,493.95, 268,401.42 and 105,069.95 is: 144,996.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,493.95 : 268,401.42 = 105,069.95 : x
  2. Step 2: Convert to fraction form
    194,493.95/268,401.42 = 105,069.95/x
  3. Step 3: Cross multiply
    194,493.95x = 268,401.42 × 105,069.95
  4. Step 4: Simplify right side
    194,493.95x = 28,200,922,437.32
  5. Step 5: Solve for x
    x = 28,200,922,437.32/194,493.95
  6. Step 6: Final answer
    x = 144,996.40

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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.