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Finding the Fourth Proportional to 55,656.70, 83,485.05 and 14,103.70

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Solution

The fourth proportional to 55,656.70, 83,485.05 and 14,103.70 is: 21,155.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,656.70 : 83,485.05 = 14,103.70 : x
  2. Step 2: Convert to fraction form
    55,656.70/83,485.05 = 14,103.70/x
  3. Step 3: Cross multiply
    55,656.70x = 83,485.05 × 14,103.70
  4. Step 4: Simplify right side
    55,656.70x = 1,177,448,099.69
  5. Step 5: Solve for x
    x = 1,177,448,099.69/55,656.70
  6. Step 6: Final answer
    x = 21,155.55

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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.