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Finding the Fourth Proportional to 370,696.26, 556,044.45 and 90,213.51

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Solution

The fourth proportional to 370,696.26, 556,044.45 and 90,213.51 is: 135,320.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,696.26 : 556,044.45 = 90,213.51 : x
  2. Step 2: Convert to fraction form
    370,696.26/556,044.45 = 90,213.51/x
  3. Step 3: Cross multiply
    370,696.26x = 556,044.45 × 90,213.51
  4. Step 4: Simplify right side
    370,696.26x = 50,162,723,297.39
  5. Step 5: Solve for x
    x = 50,162,723,297.39/370,696.26
  6. Step 6: Final answer
    x = 135,320.28

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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.