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Finding the Fourth Proportional to 221,510.10, 332,265.15 and 162,023.70

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Solution

The fourth proportional to 221,510.10, 332,265.15 and 162,023.70 is: 243,035.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,510.10 : 332,265.15 = 162,023.70 : x
  2. Step 2: Convert to fraction form
    221,510.10/332,265.15 = 162,023.70/x
  3. Step 3: Cross multiply
    221,510.10x = 332,265.15 × 162,023.70
  4. Step 4: Simplify right side
    221,510.10x = 53,834,828,984.06
  5. Step 5: Solve for x
    x = 53,834,828,984.06/221,510.10
  6. Step 6: Final answer
    x = 243,035.55

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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.