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Finding the Fourth Proportional to 115,893.33, 159,905.38 and 65,592.33

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Solution

The fourth proportional to 115,893.33, 159,905.38 and 65,592.33 is: 90,501.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,893.33 : 159,905.38 = 65,592.33 : x
  2. Step 2: Convert to fraction form
    115,893.33/159,905.38 = 65,592.33/x
  3. Step 3: Cross multiply
    115,893.33x = 159,905.38 × 65,592.33
  4. Step 4: Simplify right side
    115,893.33x = 10,488,566,453.74
  5. Step 5: Solve for x
    x = 10,488,566,453.74/115,893.33
  6. Step 6: Final answer
    x = 90,501.90

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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.