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Finding the Fourth Proportional to 367,523.40, 551,438.70 and 118,281.80

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Solution

The fourth proportional to 367,523.40, 551,438.70 and 118,281.80 is: 177,472.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,523.40 : 551,438.70 = 118,281.80 : x
  2. Step 2: Convert to fraction form
    367,523.40/551,438.70 = 118,281.80/x
  3. Step 3: Cross multiply
    367,523.40x = 551,438.70 × 118,281.80
  4. Step 4: Simplify right side
    367,523.40x = 65,225,162,025.66
  5. Step 5: Solve for x
    x = 65,225,162,025.66/367,523.40
  6. Step 6: Final answer
    x = 177,472.13

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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.