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Finding the Fourth Proportional to 248,816.80, 373,273.80 and 99,031.60

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Solution

The fourth proportional to 248,816.80, 373,273.80 and 99,031.60 is: 148,566.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,816.80 : 373,273.80 = 99,031.60 : x
  2. Step 2: Convert to fraction form
    248,816.80/373,273.80 = 99,031.60/x
  3. Step 3: Cross multiply
    248,816.80x = 373,273.80 × 99,031.60
  4. Step 4: Simplify right side
    248,816.80x = 36,965,901,652.08
  5. Step 5: Solve for x
    x = 36,965,901,652.08/248,816.80
  6. Step 6: Final answer
    x = 148,566.74

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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.