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Finding the Fourth Proportional to 475,322.71, 712,976.40 and 115,496.41

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Solution

The fourth proportional to 475,322.71, 712,976.40 and 115,496.41 is: 173,242.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,322.71 : 712,976.40 = 115,496.41 : x
  2. Step 2: Convert to fraction form
    475,322.71/712,976.40 = 115,496.41/x
  3. Step 3: Cross multiply
    475,322.71x = 712,976.40 × 115,496.41
  4. Step 4: Simplify right side
    475,322.71x = 82,346,214,614.72
  5. Step 5: Solve for x
    x = 82,346,214,614.72/475,322.71
  6. Step 6: Final answer
    x = 173,242.75

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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.