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Finding the Fourth Proportional to 167,259.90, 230,817.69 and 90,780.51

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Solution

The fourth proportional to 167,259.90, 230,817.69 and 90,780.51 is: 125,276.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,259.90 : 230,817.69 = 90,780.51 : x
  2. Step 2: Convert to fraction form
    167,259.90/230,817.69 = 90,780.51/x
  3. Step 3: Cross multiply
    167,259.90x = 230,817.69 × 90,780.51
  4. Step 4: Simplify right side
    167,259.90x = 20,953,747,615.22
  5. Step 5: Solve for x
    x = 20,953,747,615.22/167,259.90
  6. Step 6: Final answer
    x = 125,276.58

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.