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Finding the Fourth Proportional to 367,850.76, 551,760.84 and 128,019.60

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Solution

The fourth proportional to 367,850.76, 551,760.84 and 128,019.60 is: 192,024.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,850.76 : 551,760.84 = 128,019.60 : x
  2. Step 2: Convert to fraction form
    367,850.76/551,760.84 = 128,019.60/x
  3. Step 3: Cross multiply
    367,850.76x = 551,760.84 × 128,019.60
  4. Step 4: Simplify right side
    367,850.76x = 70,636,202,032.46
  5. Step 5: Solve for x
    x = 70,636,202,032.46/367,850.76
  6. Step 6: Final answer
    x = 192,024.08

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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.