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Finding the Fourth Proportional to 288,342.52, 432,372.33 and 168,429.58

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Solution

The fourth proportional to 288,342.52, 432,372.33 and 168,429.58 is: 252,561.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,342.52 : 432,372.33 = 168,429.58 : x
  2. Step 2: Convert to fraction form
    288,342.52/432,372.33 = 168,429.58/x
  3. Step 3: Cross multiply
    288,342.52x = 432,372.33 × 168,429.58
  4. Step 4: Simplify right side
    288,342.52x = 72,824,288,864.59
  5. Step 5: Solve for x
    x = 72,824,288,864.59/288,342.52
  6. Step 6: Final answer
    x = 252,561.74

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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.