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Finding the Fourth Proportional to 186,492.70, 279,739.05 and 156,968.20

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Solution

The fourth proportional to 186,492.70, 279,739.05 and 156,968.20 is: 235,452.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,492.70 : 279,739.05 = 156,968.20 : x
  2. Step 2: Convert to fraction form
    186,492.70/279,739.05 = 156,968.20/x
  3. Step 3: Cross multiply
    186,492.70x = 279,739.05 × 156,968.20
  4. Step 4: Simplify right side
    186,492.70x = 43,910,135,148.21
  5. Step 5: Solve for x
    x = 43,910,135,148.21/186,492.70
  6. Step 6: Final answer
    x = 235,452.30

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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.