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Finding the Fourth Proportional to 169,431.80, 254,147.70 and 93,324.20

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Solution

The fourth proportional to 169,431.80, 254,147.70 and 93,324.20 is: 139,986.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,431.80 : 254,147.70 = 93,324.20 : x
  2. Step 2: Convert to fraction form
    169,431.80/254,147.70 = 93,324.20/x
  3. Step 3: Cross multiply
    169,431.80x = 254,147.70 × 93,324.20
  4. Step 4: Simplify right side
    169,431.80x = 23,718,130,784.34
  5. Step 5: Solve for x
    x = 23,718,130,784.34/169,431.80
  6. Step 6: Final answer
    x = 139,986.30

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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.