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Finding the Fourth Proportional to 165,809.40, 248,714.10 and 98,449.80

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Solution

The fourth proportional to 165,809.40, 248,714.10 and 98,449.80 is: 147,674.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,809.40 : 248,714.10 = 98,449.80 : x
  2. Step 2: Convert to fraction form
    165,809.40/248,714.10 = 98,449.80/x
  3. Step 3: Cross multiply
    165,809.40x = 248,714.10 × 98,449.80
  4. Step 4: Simplify right side
    165,809.40x = 24,485,853,402.18
  5. Step 5: Solve for x
    x = 24,485,853,402.18/165,809.40
  6. Step 6: Final answer
    x = 147,674.70

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1.5x scale

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.