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Finding the Fourth Proportional to 101,259.22, 139,725.74 and 55,934.48

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Solution

The fourth proportional to 101,259.22, 139,725.74 and 55,934.48 is: 77,182.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,259.22 : 139,725.74 = 55,934.48 : x
  2. Step 2: Convert to fraction form
    101,259.22/139,725.74 = 55,934.48/x
  3. Step 3: Cross multiply
    101,259.22x = 139,725.74 × 55,934.48
  4. Step 4: Simplify right side
    101,259.22x = 7,815,486,609.52
  5. Step 5: Solve for x
    x = 7,815,486,609.52/101,259.22
  6. Step 6: Final answer
    x = 77,182.96

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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.