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Finding the Fourth Proportional to 541,606.55, 812,446.70 and 142,246.62

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Solution

The fourth proportional to 541,606.55, 812,446.70 and 142,246.62 is: 213,379.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,606.55 : 812,446.70 = 142,246.62 : x
  2. Step 2: Convert to fraction form
    541,606.55/812,446.70 = 142,246.62/x
  3. Step 3: Cross multiply
    541,606.55x = 812,446.70 × 142,246.62
  4. Step 4: Simplify right side
    541,606.55x = 115,567,796,293.92
  5. Step 5: Solve for x
    x = 115,567,796,293.92/541,606.55
  6. Step 6: Final answer
    x = 213,379.62

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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.