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Finding the Fourth Proportional to 243,952.88, 336,690.18 and 140,567.28

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Solution

The fourth proportional to 243,952.88, 336,690.18 and 140,567.28 is: 194,003.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,952.88 : 336,690.18 = 140,567.28 : x
  2. Step 2: Convert to fraction form
    243,952.88/336,690.18 = 140,567.28/x
  3. Step 3: Cross multiply
    243,952.88x = 336,690.18 × 140,567.28
  4. Step 4: Simplify right side
    243,952.88x = 47,327,622,805.31
  5. Step 5: Solve for x
    x = 47,327,622,805.31/243,952.88
  6. Step 6: Final answer
    x = 194,003.13

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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.