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Finding the Fourth Proportional to 194,487.12, 268,392.12 and 105,063.12

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Solution

The fourth proportional to 194,487.12, 268,392.12 and 105,063.12 is: 144,987.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,487.12 : 268,392.12 = 105,063.12 : x
  2. Step 2: Convert to fraction form
    194,487.12/268,392.12 = 105,063.12/x
  3. Step 3: Cross multiply
    194,487.12x = 268,392.12 × 105,063.12
  4. Step 4: Simplify right side
    194,487.12x = 28,198,113,510.61
  5. Step 5: Solve for x
    x = 28,198,113,510.61/194,487.12
  6. Step 6: Final answer
    x = 144,987.05

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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.