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Finding the Fourth Proportional to 240,358.94, 360,621.63 and 90,642.17

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Solution

The fourth proportional to 240,358.94, 360,621.63 and 90,642.17 is: 135,994.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,358.94 : 360,621.63 = 90,642.17 : x
  2. Step 2: Convert to fraction form
    240,358.94/360,621.63 = 90,642.17/x
  3. Step 3: Cross multiply
    240,358.94x = 360,621.63 × 90,642.17
  4. Step 4: Simplify right side
    240,358.94x = 32,687,527,092.14
  5. Step 5: Solve for x
    x = 32,687,527,092.14/240,358.94
  6. Step 6: Final answer
    x = 135,994.64

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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.