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Finding the Fourth Proportional to 352,985.26, 487,123.42 and 191,840.32

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Solution

The fourth proportional to 352,985.26, 487,123.42 and 191,840.32 is: 264,741.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,985.26 : 487,123.42 = 191,840.32 : x
  2. Step 2: Convert to fraction form
    352,985.26/487,123.42 = 191,840.32/x
  3. Step 3: Cross multiply
    352,985.26x = 487,123.42 × 191,840.32
  4. Step 4: Simplify right side
    352,985.26x = 93,449,912,772.29
  5. Step 5: Solve for x
    x = 93,449,912,772.29/352,985.26
  6. Step 6: Final answer
    x = 264,741.69

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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.