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Finding the Fourth Proportional to 288,057.80, 432,216.30 and 101,203.40

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Solution

The fourth proportional to 288,057.80, 432,216.30 and 101,203.40 is: 151,850.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,057.80 : 432,216.30 = 101,203.40 : x
  2. Step 2: Convert to fraction form
    288,057.80/432,216.30 = 101,203.40/x
  3. Step 3: Cross multiply
    288,057.80x = 432,216.30 × 101,203.40
  4. Step 4: Simplify right side
    288,057.80x = 43,741,759,095.42
  5. Step 5: Solve for x
    x = 43,741,759,095.42/288,057.80
  6. Step 6: Final answer
    x = 151,850.63

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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.