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Finding the Fourth Proportional to 162,994.86, 224,932.76 and 91,374.88

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Solution

The fourth proportional to 162,994.86, 224,932.76 and 91,374.88 is: 126,097.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,994.86 : 224,932.76 = 91,374.88 : x
  2. Step 2: Convert to fraction form
    162,994.86/224,932.76 = 91,374.88/x
  3. Step 3: Cross multiply
    162,994.86x = 224,932.76 × 91,374.88
  4. Step 4: Simplify right side
    162,994.86x = 20,553,203,953.07
  5. Step 5: Solve for x
    x = 20,553,203,953.07/162,994.86
  6. Step 6: Final answer
    x = 126,097.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.