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Finding the Fourth Proportional to 72,097.18, 107,935.32 and 48,108.22

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Solution

The fourth proportional to 72,097.18, 107,935.32 and 48,108.22 is: 72,021.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,097.18 : 107,935.32 = 48,108.22 : x
  2. Step 2: Convert to fraction form
    72,097.18/107,935.32 = 48,108.22/x
  3. Step 3: Cross multiply
    72,097.18x = 107,935.32 × 48,108.22
  4. Step 4: Simplify right side
    72,097.18x = 5,192,576,120.33
  5. Step 5: Solve for x
    x = 5,192,576,120.33/72,097.18
  6. Step 6: Final answer
    x = 72,021.90

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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.