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Finding the Fourth Proportional to 104,634.78, 144,393.03 and 56,887.02

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Solution

The fourth proportional to 104,634.78, 144,393.03 and 56,887.02 is: 78,502.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,634.78 : 144,393.03 = 56,887.02 : x
  2. Step 2: Convert to fraction form
    104,634.78/144,393.03 = 56,887.02/x
  3. Step 3: Cross multiply
    104,634.78x = 144,393.03 × 56,887.02
  4. Step 4: Simplify right side
    104,634.78x = 8,214,089,185.47
  5. Step 5: Solve for x
    x = 8,214,089,185.47/104,634.78
  6. Step 6: Final answer
    x = 78,502.47

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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.