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Finding the Fourth Proportional to 186,157.44, 279,288 and 103,109.76

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Solution

The fourth proportional to 186,157.44, 279,288 and 103,109.76 is: 154,693.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,157.44 : 279,288 = 103,109.76 : x
  2. Step 2: Convert to fraction form
    186,157.44/279,288 = 103,109.76/x
  3. Step 3: Cross multiply
    186,157.44x = 279,288 × 103,109.76
  4. Step 4: Simplify right side
    186,157.44x = 28,797,318,650.88
  5. Step 5: Solve for x
    x = 28,797,318,650.88/186,157.44
  6. Step 6: Final answer
    x = 154,693.35

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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.