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Finding the Fourth Proportional to 186,418.70, 279,628.05 and 170,672.30

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Solution

The fourth proportional to 186,418.70, 279,628.05 and 170,672.30 is: 256,008.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,418.70 : 279,628.05 = 170,672.30 : x
  2. Step 2: Convert to fraction form
    186,418.70/279,628.05 = 170,672.30/x
  3. Step 3: Cross multiply
    186,418.70x = 279,628.05 × 170,672.30
  4. Step 4: Simplify right side
    186,418.70x = 47,724,762,438.02
  5. Step 5: Solve for x
    x = 47,724,762,438.02/186,418.70
  6. Step 6: Final answer
    x = 256,008.45

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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.