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Finding the Fourth Proportional to 159,713.60, 239,570.40 and 141,281.60

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Solution

The fourth proportional to 159,713.60, 239,570.40 and 141,281.60 is: 211,922.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,713.60 : 239,570.40 = 141,281.60 : x
  2. Step 2: Convert to fraction form
    159,713.60/239,570.40 = 141,281.60/x
  3. Step 3: Cross multiply
    159,713.60x = 239,570.40 × 141,281.60
  4. Step 4: Simplify right side
    159,713.60x = 33,846,889,424.64
  5. Step 5: Solve for x
    x = 33,846,889,424.64/159,713.60
  6. Step 6: Final answer
    x = 211,922.40

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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.