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Finding the Fourth Proportional to 165,446.40, 248,169.60 and 147,075.60

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Solution

The fourth proportional to 165,446.40, 248,169.60 and 147,075.60 is: 220,613.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,446.40 : 248,169.60 = 147,075.60 : x
  2. Step 2: Convert to fraction form
    165,446.40/248,169.60 = 147,075.60/x
  3. Step 3: Cross multiply
    165,446.40x = 248,169.60 × 147,075.60
  4. Step 4: Simplify right side
    165,446.40x = 36,499,692,821.76
  5. Step 5: Solve for x
    x = 36,499,692,821.76/165,446.40
  6. Step 6: Final answer
    x = 220,613.40

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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.