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Finding the Fourth Proportional to 104,073.95, 143,622.47 and 56,327.28

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Solution

The fourth proportional to 104,073.95, 143,622.47 and 56,327.28 is: 77,731.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,073.95 : 143,622.47 = 56,327.28 : x
  2. Step 2: Convert to fraction form
    104,073.95/143,622.47 = 56,327.28/x
  3. Step 3: Cross multiply
    104,073.95x = 143,622.47 × 56,327.28
  4. Step 4: Simplify right side
    104,073.95x = 8,089,863,081.98
  5. Step 5: Solve for x
    x = 8,089,863,081.98/104,073.95
  6. Step 6: Final answer
    x = 77,731.87

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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.