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Finding the Fourth Proportional to 248,971.80, 373,012.20 and 151,420.80

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Solution

The fourth proportional to 248,971.80, 373,012.20 and 151,420.80 is: 226,860.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,971.80 : 373,012.20 = 151,420.80 : x
  2. Step 2: Convert to fraction form
    248,971.80/373,012.20 = 151,420.80/x
  3. Step 3: Cross multiply
    248,971.80x = 373,012.20 × 151,420.80
  4. Step 4: Simplify right side
    248,971.80x = 56,481,805,733.76
  5. Step 5: Solve for x
    x = 56,481,805,733.76/248,971.80
  6. Step 6: Final answer
    x = 226,860.25

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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.