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Finding the Fourth Proportional to 248,532.56, 372,708.12 and 90,714.32

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Solution

The fourth proportional to 248,532.56, 372,708.12 and 90,714.32 is: 136,038.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,532.56 : 372,708.12 = 90,714.32 : x
  2. Step 2: Convert to fraction form
    248,532.56/372,708.12 = 90,714.32/x
  3. Step 3: Cross multiply
    248,532.56x = 372,708.12 × 90,714.32
  4. Step 4: Simplify right side
    248,532.56x = 33,809,963,664.28
  5. Step 5: Solve for x
    x = 33,809,963,664.28/248,532.56
  6. Step 6: Final answer
    x = 136,038.37

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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.