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Finding the Fourth Proportional to 124,196.46, 186,322.36 and 45,310.68

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Solution

The fourth proportional to 124,196.46, 186,322.36 and 45,310.68 is: 67,976.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,196.46 : 186,322.36 = 45,310.68 : x
  2. Step 2: Convert to fraction form
    124,196.46/186,322.36 = 45,310.68/x
  3. Step 3: Cross multiply
    124,196.46x = 186,322.36 × 45,310.68
  4. Step 4: Simplify right side
    124,196.46x = 8,442,392,830.80
  5. Step 5: Solve for x
    x = 8,442,392,830.80/124,196.46
  6. Step 6: Final answer
    x = 67,976.11

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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.