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Finding the Fourth Proportional to 388,561.92, 582,497.10 and 151,850.76

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Solution

The fourth proportional to 388,561.92, 582,497.10 and 151,850.76 is: 227,641.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,561.92 : 582,497.10 = 151,850.76 : x
  2. Step 2: Convert to fraction form
    388,561.92/582,497.10 = 151,850.76/x
  3. Step 3: Cross multiply
    388,561.92x = 582,497.10 × 151,850.76
  4. Step 4: Simplify right side
    388,561.92x = 88,452,627,332.80
  5. Step 5: Solve for x
    x = 88,452,627,332.80/388,561.92
  6. Step 6: Final answer
    x = 227,641.01

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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.