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Finding the Fourth Proportional to 99,892.37, 149,838.01 and 40,727.81

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Solution

The fourth proportional to 99,892.37, 149,838.01 and 40,727.81 is: 61,091.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,892.37 : 149,838.01 = 40,727.81 : x
  2. Step 2: Convert to fraction form
    99,892.37/149,838.01 = 40,727.81/x
  3. Step 3: Cross multiply
    99,892.37x = 149,838.01 × 40,727.81
  4. Step 4: Simplify right side
    99,892.37x = 6,102,574,002.06
  5. Step 5: Solve for x
    x = 6,102,574,002.06/99,892.37
  6. Step 6: Final answer
    x = 61,091.49

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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.