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Finding the Fourth Proportional to 159,608.34, 220,349.46 and 105,966.72

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Solution

The fourth proportional to 159,608.34, 220,349.46 and 105,966.72 is: 146,293.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,608.34 : 220,349.46 = 105,966.72 : x
  2. Step 2: Convert to fraction form
    159,608.34/220,349.46 = 105,966.72/x
  3. Step 3: Cross multiply
    159,608.34x = 220,349.46 × 105,966.72
  4. Step 4: Simplify right side
    159,608.34x = 23,349,709,529.97
  5. Step 5: Solve for x
    x = 23,349,709,529.97/159,608.34
  6. Step 6: Final answer
    x = 146,293.79

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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.