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Finding the Fourth Proportional to 162,859.86, 224,770.34 and 91,244.72

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Solution

The fourth proportional to 162,859.86, 224,770.34 and 91,244.72 is: 125,931.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,859.86 : 224,770.34 = 91,244.72 : x
  2. Step 2: Convert to fraction form
    162,859.86/224,770.34 = 91,244.72/x
  3. Step 3: Cross multiply
    162,859.86x = 224,770.34 × 91,244.72
  4. Step 4: Simplify right side
    162,859.86x = 20,509,107,527.64
  5. Step 5: Solve for x
    x = 20,509,107,527.64/162,859.86
  6. Step 6: Final answer
    x = 125,931.02

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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.