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Finding the Fourth Proportional to 126,551.16, 189,920.01 and 59,991.03

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Solution

The fourth proportional to 126,551.16, 189,920.01 and 59,991.03 is: 90,030.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,551.16 : 189,920.01 = 59,991.03 : x
  2. Step 2: Convert to fraction form
    126,551.16/189,920.01 = 59,991.03/x
  3. Step 3: Cross multiply
    126,551.16x = 189,920.01 × 59,991.03
  4. Step 4: Simplify right side
    126,551.16x = 11,393,497,017.51
  5. Step 5: Solve for x
    x = 11,393,497,017.51/126,551.16
  6. Step 6: Final answer
    x = 90,030.76

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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.