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Finding the Fourth Proportional to 366,891.60, 550,337.40 and 156,939.60

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Solution

The fourth proportional to 366,891.60, 550,337.40 and 156,939.60 is: 235,409.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,891.60 : 550,337.40 = 156,939.60 : x
  2. Step 2: Convert to fraction form
    366,891.60/550,337.40 = 156,939.60/x
  3. Step 3: Cross multiply
    366,891.60x = 550,337.40 × 156,939.60
  4. Step 4: Simplify right side
    366,891.60x = 86,369,731,421.04
  5. Step 5: Solve for x
    x = 86,369,731,421.04/366,891.60
  6. Step 6: Final answer
    x = 235,409.40

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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.