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Finding the Fourth Proportional to 311,725.01, 467,442.20 and 161,925.08

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Solution

The fourth proportional to 311,725.01, 467,442.20 and 161,925.08 is: 242,812.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,725.01 : 467,442.20 = 161,925.08 : x
  2. Step 2: Convert to fraction form
    311,725.01/467,442.20 = 161,925.08/x
  3. Step 3: Cross multiply
    311,725.01x = 467,442.20 × 161,925.08
  4. Step 4: Simplify right side
    311,725.01x = 75,690,615,989.36
  5. Step 5: Solve for x
    x = 75,690,615,989.36/311,725.01
  6. Step 6: Final answer
    x = 242,812.14

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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.