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Finding the Fourth Proportional to 336,058.70, 504,186.47 and 99,407.68

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Solution

The fourth proportional to 336,058.70, 504,186.47 and 99,407.68 is: 149,140.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,058.70 : 504,186.47 = 99,407.68 : x
  2. Step 2: Convert to fraction form
    336,058.70/504,186.47 = 99,407.68/x
  3. Step 3: Cross multiply
    336,058.70x = 504,186.47 × 99,407.68
  4. Step 4: Simplify right side
    336,058.70x = 50,120,007,270.09
  5. Step 5: Solve for x
    x = 50,120,007,270.09/336,058.70
  6. Step 6: Final answer
    x = 149,140.63

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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.