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Finding the Fourth Proportional to 275,809.80, 413,714.70 and 98,322.60

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Solution

The fourth proportional to 275,809.80, 413,714.70 and 98,322.60 is: 147,483.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,809.80 : 413,714.70 = 98,322.60 : x
  2. Step 2: Convert to fraction form
    275,809.80/413,714.70 = 98,322.60/x
  3. Step 3: Cross multiply
    275,809.80x = 413,714.70 × 98,322.60
  4. Step 4: Simplify right side
    275,809.80x = 40,677,504,962.22
  5. Step 5: Solve for x
    x = 40,677,504,962.22/275,809.80
  6. Step 6: Final answer
    x = 147,483.90

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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.