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Finding the Fourth Proportional to 210,542.34, 315,719.70 and 60,747.02

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Solution

The fourth proportional to 210,542.34, 315,719.70 and 60,747.02 is: 91,093.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,542.34 : 315,719.70 = 60,747.02 : x
  2. Step 2: Convert to fraction form
    210,542.34/315,719.70 = 60,747.02/x
  3. Step 3: Cross multiply
    210,542.34x = 315,719.70 × 60,747.02
  4. Step 4: Simplify right side
    210,542.34x = 19,179,030,930.29
  5. Step 5: Solve for x
    x = 19,179,030,930.29/210,542.34
  6. Step 6: Final answer
    x = 91,093.46

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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.