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Finding the Fourth Proportional to 72,353.36, 99,846.56 and 40,523.36

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Solution

The fourth proportional to 72,353.36, 99,846.56 and 40,523.36 is: 55,921.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,353.36 : 99,846.56 = 40,523.36 : x
  2. Step 2: Convert to fraction form
    72,353.36/99,846.56 = 40,523.36/x
  3. Step 3: Cross multiply
    72,353.36x = 99,846.56 × 40,523.36
  4. Step 4: Simplify right side
    72,353.36x = 4,046,118,095.64
  5. Step 5: Solve for x
    x = 4,046,118,095.64/72,353.36
  6. Step 6: Final answer
    x = 55,921.63

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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.