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Finding the Fourth Proportional to 98,544.99, 135,992.21 and 56,103.52

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Solution

The fourth proportional to 98,544.99, 135,992.21 and 56,103.52 is: 77,422.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,544.99 : 135,992.21 = 56,103.52 : x
  2. Step 2: Convert to fraction form
    98,544.99/135,992.21 = 56,103.52/x
  3. Step 3: Cross multiply
    98,544.99x = 135,992.21 × 56,103.52
  4. Step 4: Simplify right side
    98,544.99x = 7,629,641,673.58
  5. Step 5: Solve for x
    x = 7,629,641,673.58/98,544.99
  6. Step 6: Final answer
    x = 77,422.93

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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.