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Finding the Fourth Proportional to 101,836.46, 140,527.96 and 61,526.40

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Solution

The fourth proportional to 101,836.46, 140,527.96 and 61,526.40 is: 84,902.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,836.46 : 140,527.96 = 61,526.40 : x
  2. Step 2: Convert to fraction form
    101,836.46/140,527.96 = 61,526.40/x
  3. Step 3: Cross multiply
    101,836.46x = 140,527.96 × 61,526.40
  4. Step 4: Simplify right side
    101,836.46x = 8,646,179,478.14
  5. Step 5: Solve for x
    x = 8,646,179,478.14/101,836.46
  6. Step 6: Final answer
    x = 84,902.59

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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.