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Finding the Fourth Proportional to 260,621.13, 359,654.71 and 147,443.88

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Solution

The fourth proportional to 260,621.13, 359,654.71 and 147,443.88 is: 203,471.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,621.13 : 359,654.71 = 147,443.88 : x
  2. Step 2: Convert to fraction form
    260,621.13/359,654.71 = 147,443.88/x
  3. Step 3: Cross multiply
    260,621.13x = 359,654.71 × 147,443.88
  4. Step 4: Simplify right side
    260,621.13x = 53,028,885,902.67
  5. Step 5: Solve for x
    x = 53,028,885,902.67/260,621.13
  6. Step 6: Final answer
    x = 203,471.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.