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Finding the Fourth Proportional to 114,115.50, 171,131.27 and 39,214.38

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Solution

The fourth proportional to 114,115.50, 171,131.27 and 39,214.38 is: 58,807.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,115.50 : 171,131.27 = 39,214.38 : x
  2. Step 2: Convert to fraction form
    114,115.50/171,131.27 = 39,214.38/x
  3. Step 3: Cross multiply
    114,115.50x = 171,131.27 × 39,214.38
  4. Step 4: Simplify right side
    114,115.50x = 6,710,806,651.66
  5. Step 5: Solve for x
    x = 6,710,806,651.66/114,115.50
  6. Step 6: Final answer
    x = 58,807.14

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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.