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Finding the Fourth Proportional to 159,628.56, 239,486.76 and 47,314.32

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Solution

The fourth proportional to 159,628.56, 239,486.76 and 47,314.32 is: 70,984.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,628.56 : 239,486.76 = 47,314.32 : x
  2. Step 2: Convert to fraction form
    159,628.56/239,486.76 = 47,314.32/x
  3. Step 3: Cross multiply
    159,628.56x = 239,486.76 × 47,314.32
  4. Step 4: Simplify right side
    159,628.56x = 11,331,153,198.40
  5. Step 5: Solve for x
    x = 11,331,153,198.40/159,628.56
  6. Step 6: Final answer
    x = 70,984.50

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1.5x scale

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.