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Finding the Fourth Proportional to 355,437.52, 533,249.72 and 127,756.10

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Solution

The fourth proportional to 355,437.52, 533,249.72 and 127,756.10 is: 191,667.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,437.52 : 533,249.72 = 127,756.10 : x
  2. Step 2: Convert to fraction form
    355,437.52/533,249.72 = 127,756.10/x
  3. Step 3: Cross multiply
    355,437.52x = 533,249.72 × 127,756.10
  4. Step 4: Simplify right side
    355,437.52x = 68,125,904,553.29
  5. Step 5: Solve for x
    x = 68,125,904,553.29/355,437.52
  6. Step 6: Final answer
    x = 191,667.74

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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.