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Finding the Fourth Proportional to 66,527.13, 91,822.86 and 43,870.21

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Solution

The fourth proportional to 66,527.13, 91,822.86 and 43,870.21 is: 60,551.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,527.13 : 91,822.86 = 43,870.21 : x
  2. Step 2: Convert to fraction form
    66,527.13/91,822.86 = 43,870.21/x
  3. Step 3: Cross multiply
    66,527.13x = 91,822.86 × 43,870.21
  4. Step 4: Simplify right side
    66,527.13x = 4,028,288,041.33
  5. Step 5: Solve for x
    x = 4,028,288,041.33/66,527.13
  6. Step 6: Final answer
    x = 60,551.06

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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.