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Finding the Fourth Proportional to 236,445.80, 354,668.70 and 147,972.20

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Solution

The fourth proportional to 236,445.80, 354,668.70 and 147,972.20 is: 221,958.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,445.80 : 354,668.70 = 147,972.20 : x
  2. Step 2: Convert to fraction form
    236,445.80/354,668.70 = 147,972.20/x
  3. Step 3: Cross multiply
    236,445.80x = 354,668.70 × 147,972.20
  4. Step 4: Simplify right side
    236,445.80x = 52,481,107,810.14
  5. Step 5: Solve for x
    x = 52,481,107,810.14/236,445.80
  6. Step 6: Final answer
    x = 221,958.30

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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.