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Finding the Fourth Proportional to 111,212.67, 153,473.49 and 60,911.67

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Solution

The fourth proportional to 111,212.67, 153,473.49 and 60,911.67 is: 84,058.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,212.67 : 153,473.49 = 60,911.67 : x
  2. Step 2: Convert to fraction form
    111,212.67/153,473.49 = 60,911.67/x
  3. Step 3: Cross multiply
    111,212.67x = 153,473.49 × 60,911.67
  4. Step 4: Simplify right side
    111,212.67x = 9,348,326,576.63
  5. Step 5: Solve for x
    x = 9,348,326,576.63/111,212.67
  6. Step 6: Final answer
    x = 84,058.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.