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Finding the Fourth Proportional to 248,600.80, 372,955.20 and 90,829

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Solution

The fourth proportional to 248,600.80, 372,955.20 and 90,829 is: 136,263.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,600.80 : 372,955.20 = 90,829 : x
  2. Step 2: Convert to fraction form
    248,600.80/372,955.20 = 90,829/x
  3. Step 3: Cross multiply
    248,600.80x = 372,955.20 × 90,829
  4. Step 4: Simplify right side
    248,600.80x = 33,875,147,860.80
  5. Step 5: Solve for x
    x = 33,875,147,860.80/248,600.80
  6. Step 6: Final answer
    x = 136,263.23

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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.