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Finding the Fourth Proportional to 237,729.85, 356,616.76 and 85,964.81

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Solution

The fourth proportional to 237,729.85, 356,616.76 and 85,964.81 is: 128,955.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,729.85 : 356,616.76 = 85,964.81 : x
  2. Step 2: Convert to fraction form
    237,729.85/356,616.76 = 85,964.81/x
  3. Step 3: Cross multiply
    237,729.85x = 356,616.76 × 85,964.81
  4. Step 4: Simplify right side
    237,729.85x = 30,656,490,233.13
  5. Step 5: Solve for x
    x = 30,656,490,233.13/237,729.85
  6. Step 6: Final answer
    x = 128,955.16

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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.