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Finding the Fourth Proportional to 248,889.60, 373,042.80 and 186,487.20

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Solution

The fourth proportional to 248,889.60, 373,042.80 and 186,487.20 is: 279,512.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,889.60 : 373,042.80 = 186,487.20 : x
  2. Step 2: Convert to fraction form
    248,889.60/373,042.80 = 186,487.20/x
  3. Step 3: Cross multiply
    248,889.60x = 373,042.80 × 186,487.20
  4. Step 4: Simplify right side
    248,889.60x = 69,567,707,252.16
  5. Step 5: Solve for x
    x = 69,567,707,252.16/248,889.60
  6. Step 6: Final answer
    x = 279,512.31

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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.