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Finding the Fourth Proportional to 352,951.70, 487,066.97 and 191,807.31

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Solution

The fourth proportional to 352,951.70, 487,066.97 and 191,807.31 is: 264,690.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,951.70 : 487,066.97 = 191,807.31 : x
  2. Step 2: Convert to fraction form
    352,951.70/487,066.97 = 191,807.31/x
  3. Step 3: Cross multiply
    352,951.70x = 487,066.97 × 191,807.31
  4. Step 4: Simplify right side
    352,951.70x = 93,423,004,346.51
  5. Step 5: Solve for x
    x = 93,423,004,346.51/352,951.70
  6. Step 6: Final answer
    x = 264,690.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.