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Finding the Fourth Proportional to 239,850.96, 359,710.75 and 90,079.66

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Solution

The fourth proportional to 239,850.96, 359,710.75 and 90,079.66 is: 135,094.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,850.96 : 359,710.75 = 90,079.66 : x
  2. Step 2: Convert to fraction form
    239,850.96/359,710.75 = 90,079.66/x
  3. Step 3: Cross multiply
    239,850.96x = 359,710.75 × 90,079.66
  4. Step 4: Simplify right side
    239,850.96x = 32,402,622,058.35
  5. Step 5: Solve for x
    x = 32,402,622,058.35/239,850.96
  6. Step 6: Final answer
    x = 135,094.82

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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.