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Finding the Fourth Proportional to 85,240.97, 127,904.63 and 56,797.36

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Solution

The fourth proportional to 85,240.97, 127,904.63 and 56,797.36 is: 85,224.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,240.97 : 127,904.63 = 56,797.36 : x
  2. Step 2: Convert to fraction form
    85,240.97/127,904.63 = 56,797.36/x
  3. Step 3: Cross multiply
    85,240.97x = 127,904.63 × 56,797.36
  4. Step 4: Simplify right side
    85,240.97x = 7,264,645,315.78
  5. Step 5: Solve for x
    x = 7,264,645,315.78/85,240.97
  6. Step 6: Final answer
    x = 85,224.81

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1.5x scale

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.