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Finding the Fourth Proportional to 145,887.53, 218,755.76 and 55,903.41

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Solution

The fourth proportional to 145,887.53, 218,755.76 and 55,903.41 is: 83,826.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,887.53 : 218,755.76 = 55,903.41 : x
  2. Step 2: Convert to fraction form
    145,887.53/218,755.76 = 55,903.41/x
  3. Step 3: Cross multiply
    145,887.53x = 218,755.76 × 55,903.41
  4. Step 4: Simplify right side
    145,887.53x = 12,229,192,661.62
  5. Step 5: Solve for x
    x = 12,229,192,661.62/145,887.53
  6. Step 6: Final answer
    x = 83,826.17

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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.