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Finding the Fourth Proportional to 248,509.56, 372,673.62 and 90,691.32

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Solution

The fourth proportional to 248,509.56, 372,673.62 and 90,691.32 is: 136,003.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,509.56 : 372,673.62 = 90,691.32 : x
  2. Step 2: Convert to fraction form
    248,509.56/372,673.62 = 90,691.32/x
  3. Step 3: Cross multiply
    248,509.56x = 372,673.62 × 90,691.32
  4. Step 4: Simplify right side
    248,509.56x = 33,798,262,526.98
  5. Step 5: Solve for x
    x = 33,798,262,526.98/248,509.56
  6. Step 6: Final answer
    x = 136,003.87

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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.