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Finding the Fourth Proportional to 172,181.70, 237,528.75 and 114,847.50

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Solution

The fourth proportional to 172,181.70, 237,528.75 and 114,847.50 is: 158,434.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,181.70 : 237,528.75 = 114,847.50 : x
  2. Step 2: Convert to fraction form
    172,181.70/237,528.75 = 114,847.50/x
  3. Step 3: Cross multiply
    172,181.70x = 237,528.75 × 114,847.50
  4. Step 4: Simplify right side
    172,181.70x = 27,279,583,115.63
  5. Step 5: Solve for x
    x = 27,279,583,115.63/172,181.70
  6. Step 6: Final answer
    x = 158,434.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.