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Finding the Fourth Proportional to 165,672.70, 248,509.05 and 114,934.30

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Solution

The fourth proportional to 165,672.70, 248,509.05 and 114,934.30 is: 172,401.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,672.70 : 248,509.05 = 114,934.30 : x
  2. Step 2: Convert to fraction form
    165,672.70/248,509.05 = 114,934.30/x
  3. Step 3: Cross multiply
    165,672.70x = 248,509.05 × 114,934.30
  4. Step 4: Simplify right side
    165,672.70x = 28,562,213,705.42
  5. Step 5: Solve for x
    x = 28,562,213,705.42/165,672.70
  6. Step 6: Final answer
    x = 172,401.45

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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.