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Finding the Fourth Proportional to 167,415.67, 231,035.33 and 90,935.51

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Solution

The fourth proportional to 167,415.67, 231,035.33 and 90,935.51 is: 125,491.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,415.67 : 231,035.33 = 90,935.51 : x
  2. Step 2: Convert to fraction form
    167,415.67/231,035.33 = 90,935.51/x
  3. Step 3: Cross multiply
    167,415.67x = 231,035.33 × 90,935.51
  4. Step 4: Simplify right side
    167,415.67x = 21,009,315,561.57
  5. Step 5: Solve for x
    x = 21,009,315,561.57/167,415.67
  6. Step 6: Final answer
    x = 125,491.93

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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.