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Finding the Fourth Proportional to 84,697.94, 127,020.90 and 58,570.58

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Solution

The fourth proportional to 84,697.94, 127,020.90 and 58,570.58 is: 87,837.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,697.94 : 127,020.90 = 58,570.58 : x
  2. Step 2: Convert to fraction form
    84,697.94/127,020.90 = 58,570.58/x
  3. Step 3: Cross multiply
    84,697.94x = 127,020.90 × 58,570.58
  4. Step 4: Simplify right side
    84,697.94x = 7,439,687,785.12
  5. Step 5: Solve for x
    x = 7,439,687,785.12/84,697.94
  6. Step 6: Final answer
    x = 87,837.88

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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.