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Finding the Fourth Proportional to 101,479.17, 152,200.94 and 31,359.09

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Solution

The fourth proportional to 101,479.17, 152,200.94 and 31,359.09 is: 47,033.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,479.17 : 152,200.94 = 31,359.09 : x
  2. Step 2: Convert to fraction form
    101,479.17/152,200.94 = 31,359.09/x
  3. Step 3: Cross multiply
    101,479.17x = 152,200.94 × 31,359.09
  4. Step 4: Simplify right side
    101,479.17x = 4,772,882,818.75
  5. Step 5: Solve for x
    x = 4,772,882,818.75/101,479.17
  6. Step 6: Final answer
    x = 47,033.13

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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.