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Finding the Fourth Proportional to 127,364.50, 190,784.17 and 74,614.06

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Solution

The fourth proportional to 127,364.50, 190,784.17 and 74,614.06 is: 111,767.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,364.50 : 190,784.17 = 74,614.06 : x
  2. Step 2: Convert to fraction form
    127,364.50/190,784.17 = 74,614.06/x
  3. Step 3: Cross multiply
    127,364.50x = 190,784.17 × 74,614.06
  4. Step 4: Simplify right side
    127,364.50x = 14,235,181,507.43
  5. Step 5: Solve for x
    x = 14,235,181,507.43/127,364.50
  6. Step 6: Final answer
    x = 111,767.26

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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.