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Finding the Fourth Proportional to 388,517.59, 582,838.66 and 163,911.11

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Solution

The fourth proportional to 388,517.59, 582,838.66 and 163,911.11 is: 245,892.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,517.59 : 582,838.66 = 163,911.11 : x
  2. Step 2: Convert to fraction form
    388,517.59/582,838.66 = 163,911.11/x
  3. Step 3: Cross multiply
    388,517.59x = 582,838.66 × 163,911.11
  4. Step 4: Simplify right side
    388,517.59x = 95,533,731,711.51
  5. Step 5: Solve for x
    x = 95,533,731,711.51/388,517.59
  6. Step 6: Final answer
    x = 245,892.94

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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.