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Finding the Fourth Proportional to 170,797.34, 235,750.38 and 99,209.54

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Solution

The fourth proportional to 170,797.34, 235,750.38 and 99,209.54 is: 136,938.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,797.34 : 235,750.38 = 99,209.54 : x
  2. Step 2: Convert to fraction form
    170,797.34/235,750.38 = 99,209.54/x
  3. Step 3: Cross multiply
    170,797.34x = 235,750.38 × 99,209.54
  4. Step 4: Simplify right side
    170,797.34x = 23,388,686,754.63
  5. Step 5: Solve for x
    x = 23,388,686,754.63/170,797.34
  6. Step 6: Final answer
    x = 136,938.24

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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.