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Finding the Fourth Proportional to 85,551, 118,060.56 and 57,324.12

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Solution

The fourth proportional to 85,551, 118,060.56 and 57,324.12 is: 79,107.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,551 : 118,060.56 = 57,324.12 : x
  2. Step 2: Convert to fraction form
    85,551/118,060.56 = 57,324.12/x
  3. Step 3: Cross multiply
    85,551x = 118,060.56 × 57,324.12
  4. Step 4: Simplify right side
    85,551x = 6,767,717,708.71
  5. Step 5: Solve for x
    x = 6,767,717,708.71/85,551
  6. Step 6: Final answer
    x = 79,107.41

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1.5x scale

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.