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Finding the Fourth Proportional to 186,484.70, 279,727.05 and 156,960.20

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Solution

The fourth proportional to 186,484.70, 279,727.05 and 156,960.20 is: 235,440.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,484.70 : 279,727.05 = 156,960.20 : x
  2. Step 2: Convert to fraction form
    186,484.70/279,727.05 = 156,960.20/x
  3. Step 3: Cross multiply
    186,484.70x = 279,727.05 × 156,960.20
  4. Step 4: Simplify right side
    186,484.70x = 43,906,013,713.41
  5. Step 5: Solve for x
    x = 43,906,013,713.41/186,484.70
  6. Step 6: Final answer
    x = 235,440.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.