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Finding the Fourth Proportional to 103,485.36, 155,247.84 and 33,345.84

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Solution

The fourth proportional to 103,485.36, 155,247.84 and 33,345.84 is: 50,025.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,485.36 : 155,247.84 = 33,345.84 : x
  2. Step 2: Convert to fraction form
    103,485.36/155,247.84 = 33,345.84/x
  3. Step 3: Cross multiply
    103,485.36x = 155,247.84 × 33,345.84
  4. Step 4: Simplify right side
    103,485.36x = 5,176,869,632.99
  5. Step 5: Solve for x
    x = 5,176,869,632.99/103,485.36
  6. Step 6: Final answer
    x = 50,025.14

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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.