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Finding the Fourth Proportional to 366,932.60, 550,398.90 and 117,639.80

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Solution

The fourth proportional to 366,932.60, 550,398.90 and 117,639.80 is: 176,459.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,932.60 : 550,398.90 = 117,639.80 : x
  2. Step 2: Convert to fraction form
    366,932.60/550,398.90 = 117,639.80/x
  3. Step 3: Cross multiply
    366,932.60x = 550,398.90 × 117,639.80
  4. Step 4: Simplify right side
    366,932.60x = 64,748,816,516.22
  5. Step 5: Solve for x
    x = 64,748,816,516.22/366,932.60
  6. Step 6: Final answer
    x = 176,459.70

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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.