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Finding the Fourth Proportional to 114,770.32, 172,165.40 and 31,664.32

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Solution

The fourth proportional to 114,770.32, 172,165.40 and 31,664.32 is: 47,499.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,770.32 : 172,165.40 = 31,664.32 : x
  2. Step 2: Convert to fraction form
    114,770.32/172,165.40 = 31,664.32/x
  3. Step 3: Cross multiply
    114,770.32x = 172,165.40 × 31,664.32
  4. Step 4: Simplify right side
    114,770.32x = 5,451,500,318.53
  5. Step 5: Solve for x
    x = 5,451,500,318.53/114,770.32
  6. Step 6: Final answer
    x = 47,499.22

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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.