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Finding the Fourth Proportional to 248,857.70, 373,287.90 and 61,869.20

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Solution

The fourth proportional to 248,857.70, 373,287.90 and 61,869.20 is: 92,804.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,857.70 : 373,287.90 = 61,869.20 : x
  2. Step 2: Convert to fraction form
    248,857.70/373,287.90 = 61,869.20/x
  3. Step 3: Cross multiply
    248,857.70x = 373,287.90 × 61,869.20
  4. Step 4: Simplify right side
    248,857.70x = 23,095,021,876.24
  5. Step 5: Solve for x
    x = 23,095,021,876.24/248,857.70
  6. Step 6: Final answer
    x = 92,804.13

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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.