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Finding the Fourth Proportional to 215,959.01, 323,686.31 and 162,479.18

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Solution

The fourth proportional to 215,959.01, 323,686.31 and 162,479.18 is: 243,529.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,959.01 : 323,686.31 = 162,479.18 : x
  2. Step 2: Convert to fraction form
    215,959.01/323,686.31 = 162,479.18/x
  3. Step 3: Cross multiply
    215,959.01x = 323,686.31 × 162,479.18
  4. Step 4: Simplify right side
    215,959.01x = 52,592,286,222.85
  5. Step 5: Solve for x
    x = 52,592,286,222.85/215,959.01
  6. Step 6: Final answer
    x = 243,529.03

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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.