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Finding the Fourth Proportional to 367,478.98, 551,289.56 and 127,601.53

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Solution

The fourth proportional to 367,478.98, 551,289.56 and 127,601.53 is: 191,426.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,478.98 : 551,289.56 = 127,601.53 : x
  2. Step 2: Convert to fraction form
    367,478.98/551,289.56 = 127,601.53/x
  3. Step 3: Cross multiply
    367,478.98x = 551,289.56 × 127,601.53
  4. Step 4: Simplify right side
    367,478.98x = 70,345,389,312.80
  5. Step 5: Solve for x
    x = 70,345,389,312.80/367,478.98
  6. Step 6: Final answer
    x = 191,426.98

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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.