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Finding the Fourth Proportional to 367,503.48, 551,313.65 and 127,690.73

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Solution

The fourth proportional to 367,503.48, 551,313.65 and 127,690.73 is: 191,556.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,503.48 : 551,313.65 = 127,690.73 : x
  2. Step 2: Convert to fraction form
    367,503.48/551,313.65 = 127,690.73/x
  3. Step 3: Cross multiply
    367,503.48x = 551,313.65 × 127,690.73
  4. Step 4: Simplify right side
    367,503.48x = 70,397,642,237.11
  5. Step 5: Solve for x
    x = 70,397,642,237.11/367,503.48
  6. Step 6: Final answer
    x = 191,556.40

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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.