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Finding the Fourth Proportional to 122,242.87, 183,380.91 and 37,987.28

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Solution

The fourth proportional to 122,242.87, 183,380.91 and 37,987.28 is: 56,986.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,242.87 : 183,380.91 = 37,987.28 : x
  2. Step 2: Convert to fraction form
    122,242.87/183,380.91 = 37,987.28/x
  3. Step 3: Cross multiply
    122,242.87x = 183,380.91 × 37,987.28
  4. Step 4: Simplify right side
    122,242.87x = 6,966,140,867.98
  5. Step 5: Solve for x
    x = 6,966,140,867.98/122,242.87
  6. Step 6: Final answer
    x = 56,986.07

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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.