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Finding the Fourth Proportional to 111,563.76, 153,959.82 and 60,576.48

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Solution

The fourth proportional to 111,563.76, 153,959.82 and 60,576.48 is: 83,596.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,563.76 : 153,959.82 = 60,576.48 : x
  2. Step 2: Convert to fraction form
    111,563.76/153,959.82 = 60,576.48/x
  3. Step 3: Cross multiply
    111,563.76x = 153,959.82 × 60,576.48
  4. Step 4: Simplify right side
    111,563.76x = 9,326,343,957.03
  5. Step 5: Solve for x
    x = 9,326,343,957.03/111,563.76
  6. Step 6: Final answer
    x = 83,596.54

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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.