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Finding the Fourth Proportional to 356,543.50, 534,446.70 and 119,806.42

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Solution

The fourth proportional to 356,543.50, 534,446.70 and 119,806.42 is: 179,585.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,543.50 : 534,446.70 = 119,806.42 : x
  2. Step 2: Convert to fraction form
    356,543.50/534,446.70 = 119,806.42/x
  3. Step 3: Cross multiply
    356,543.50x = 534,446.70 × 119,806.42
  4. Step 4: Simplify right side
    356,543.50x = 64,030,145,807.81
  5. Step 5: Solve for x
    x = 64,030,145,807.81/356,543.50
  6. Step 6: Final answer
    x = 179,585.79

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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.