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Finding the Fourth Proportional to 243,288.35, 335,664.56 and 141,294.15

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Solution

The fourth proportional to 243,288.35, 335,664.56 and 141,294.15 is: 194,943.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,288.35 : 335,664.56 = 141,294.15 : x
  2. Step 2: Convert to fraction form
    243,288.35/335,664.56 = 141,294.15/x
  3. Step 3: Cross multiply
    243,288.35x = 335,664.56 × 141,294.15
  4. Step 4: Simplify right side
    243,288.35x = 47,427,437,304.72
  5. Step 5: Solve for x
    x = 47,427,437,304.72/243,288.35
  6. Step 6: Final answer
    x = 194,943.32

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1.5x scale

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.