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Finding the Fourth Proportional to 366,986.60, 550,479.90 and 117,693.80

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Solution

The fourth proportional to 366,986.60, 550,479.90 and 117,693.80 is: 176,540.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,986.60 : 550,479.90 = 117,693.80 : x
  2. Step 2: Convert to fraction form
    366,986.60/550,479.90 = 117,693.80/x
  3. Step 3: Cross multiply
    366,986.60x = 550,479.90 × 117,693.80
  4. Step 4: Simplify right side
    366,986.60x = 64,788,071,254.62
  5. Step 5: Solve for x
    x = 64,788,071,254.62/366,986.60
  6. Step 6: Final answer
    x = 176,540.70

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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.