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Finding the Fourth Proportional to 482,197.64, 723,214.38 and 127,215.08

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Solution

The fourth proportional to 482,197.64, 723,214.38 and 127,215.08 is: 190,800.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,197.64 : 723,214.38 = 127,215.08 : x
  2. Step 2: Convert to fraction form
    482,197.64/723,214.38 = 127,215.08/x
  3. Step 3: Cross multiply
    482,197.64x = 723,214.38 × 127,215.08
  4. Step 4: Simplify right side
    482,197.64x = 92,003,775,208.85
  5. Step 5: Solve for x
    x = 92,003,775,208.85/482,197.64
  6. Step 6: Final answer
    x = 190,800.97

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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.