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Finding the Fourth Proportional to 357,744.24, 536,728.68 and 147,481.20

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Solution

The fourth proportional to 357,744.24, 536,728.68 and 147,481.20 is: 221,268.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,744.24 : 536,728.68 = 147,481.20 : x
  2. Step 2: Convert to fraction form
    357,744.24/536,728.68 = 147,481.20/x
  3. Step 3: Cross multiply
    357,744.24x = 536,728.68 × 147,481.20
  4. Step 4: Simplify right side
    357,744.24x = 79,157,389,800.82
  5. Step 5: Solve for x
    x = 79,157,389,800.82/357,744.24
  6. Step 6: Final answer
    x = 221,268.10

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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.