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Finding the Fourth Proportional to 170,808.71, 235,698.11 and 99,174.74

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Solution

The fourth proportional to 170,808.71, 235,698.11 and 99,174.74 is: 136,850.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,808.71 : 235,698.11 = 99,174.74 : x
  2. Step 2: Convert to fraction form
    170,808.71/235,698.11 = 99,174.74/x
  3. Step 3: Cross multiply
    170,808.71x = 235,698.11 × 99,174.74
  4. Step 4: Simplify right side
    170,808.71x = 23,375,297,103.38
  5. Step 5: Solve for x
    x = 23,375,297,103.38/170,808.71
  6. Step 6: Final answer
    x = 136,850.74

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1.5x scale

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.