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Finding the Fourth Proportional to 127,165.20, 190,690.20 and 48,253.20

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Solution

The fourth proportional to 127,165.20, 190,690.20 and 48,253.20 is: 72,357.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,165.20 : 190,690.20 = 48,253.20 : x
  2. Step 2: Convert to fraction form
    127,165.20/190,690.20 = 48,253.20/x
  3. Step 3: Cross multiply
    127,165.20x = 190,690.20 × 48,253.20
  4. Step 4: Simplify right side
    127,165.20x = 9,201,412,358.64
  5. Step 5: Solve for x
    x = 9,201,412,358.64/127,165.20
  6. Step 6: Final answer
    x = 72,357.94

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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.