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Finding the Fourth Proportional to 215,954.79, 297,856.94 and 158,576.10

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Solution

The fourth proportional to 215,954.79, 297,856.94 and 158,576.10 is: 218,717.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,954.79 : 297,856.94 = 158,576.10 : x
  2. Step 2: Convert to fraction form
    215,954.79/297,856.94 = 158,576.10/x
  3. Step 3: Cross multiply
    215,954.79x = 297,856.94 × 158,576.10
  4. Step 4: Simplify right side
    215,954.79x = 47,232,990,413.85
  5. Step 5: Solve for x
    x = 47,232,990,413.85/215,954.79
  6. Step 6: Final answer
    x = 218,717.04

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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.