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Finding the Fourth Proportional to 347,154.55, 520,597.19 and 119,406.86

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Solution

The fourth proportional to 347,154.55, 520,597.19 and 119,406.86 is: 179,063.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,154.55 : 520,597.19 = 119,406.86 : x
  2. Step 2: Convert to fraction form
    347,154.55/520,597.19 = 119,406.86/x
  3. Step 3: Cross multiply
    347,154.55x = 520,597.19 × 119,406.86
  4. Step 4: Simplify right side
    347,154.55x = 62,162,877,382.73
  5. Step 5: Solve for x
    x = 62,162,877,382.73/347,154.55
  6. Step 6: Final answer
    x = 179,063.99

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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.