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Finding the Fourth Proportional to 248,256.60, 372,202.65 and 98,422.80

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Solution

The fourth proportional to 248,256.60, 372,202.65 and 98,422.80 is: 147,561.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,256.60 : 372,202.65 = 98,422.80 : x
  2. Step 2: Convert to fraction form
    248,256.60/372,202.65 = 98,422.80/x
  3. Step 3: Cross multiply
    248,256.60x = 372,202.65 × 98,422.80
  4. Step 4: Simplify right side
    248,256.60x = 36,633,226,980.42
  5. Step 5: Solve for x
    x = 36,633,226,980.42/248,256.60
  6. Step 6: Final answer
    x = 147,561.95

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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.