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Finding the Fourth Proportional to 371,991.57, 558,059.18 and 158,756.37

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Solution

The fourth proportional to 371,991.57, 558,059.18 and 158,756.37 is: 238,165.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,991.57 : 558,059.18 = 158,756.37 : x
  2. Step 2: Convert to fraction form
    371,991.57/558,059.18 = 158,756.37/x
  3. Step 3: Cross multiply
    371,991.57x = 558,059.18 × 158,756.37
  4. Step 4: Simplify right side
    371,991.57x = 88,595,448,868.19
  5. Step 5: Solve for x
    x = 88,595,448,868.19/371,991.57
  6. Step 6: Final answer
    x = 238,165.21

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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.