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Finding the Fourth Proportional to 114,151.80, 171,227.70 and 31,045.80

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Solution

The fourth proportional to 114,151.80, 171,227.70 and 31,045.80 is: 46,568.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,151.80 : 171,227.70 = 31,045.80 : x
  2. Step 2: Convert to fraction form
    114,151.80/171,227.70 = 31,045.80/x
  3. Step 3: Cross multiply
    114,151.80x = 171,227.70 × 31,045.80
  4. Step 4: Simplify right side
    114,151.80x = 5,315,900,928.66
  5. Step 5: Solve for x
    x = 5,315,900,928.66/114,151.80
  6. Step 6: Final answer
    x = 46,568.70

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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.