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Finding the Fourth Proportional to 248,431.32, 372,403.98 and 98,621.82

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Solution

The fourth proportional to 248,431.32, 372,403.98 and 98,621.82 is: 147,836.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,431.32 : 372,403.98 = 98,621.82 : x
  2. Step 2: Convert to fraction form
    248,431.32/372,403.98 = 98,621.82/x
  3. Step 3: Cross multiply
    248,431.32x = 372,403.98 × 98,621.82
  4. Step 4: Simplify right side
    248,431.32x = 36,727,158,282.84
  5. Step 5: Solve for x
    x = 36,727,158,282.84/248,431.32
  6. Step 6: Final answer
    x = 147,836.26

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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.