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Finding the Fourth Proportional to 441,685, 662,527.50 and 109,261

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Solution

The fourth proportional to 441,685, 662,527.50 and 109,261 is: 163,891.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,685 : 662,527.50 = 109,261 : x
  2. Step 2: Convert to fraction form
    441,685/662,527.50 = 109,261/x
  3. Step 3: Cross multiply
    441,685x = 662,527.50 × 109,261
  4. Step 4: Simplify right side
    441,685x = 72,388,417,177.50
  5. Step 5: Solve for x
    x = 72,388,417,177.50/441,685
  6. Step 6: Final answer
    x = 163,891.50

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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.