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Finding the Fourth Proportional to 75,590.47, 113,385.47 and 36,138.35

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Solution

The fourth proportional to 75,590.47, 113,385.47 and 36,138.35 is: 54,207.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,590.47 : 113,385.47 = 36,138.35 : x
  2. Step 2: Convert to fraction form
    75,590.47/113,385.47 = 36,138.35/x
  3. Step 3: Cross multiply
    75,590.47x = 113,385.47 × 36,138.35
  4. Step 4: Simplify right side
    75,590.47x = 4,097,564,105.82
  5. Step 5: Solve for x
    x = 4,097,564,105.82/75,590.47
  6. Step 6: Final answer
    x = 54,207.42

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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.