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Finding the Fourth Proportional to 104,707.71, 144,492.41 and 56,961.25

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Solution

The fourth proportional to 104,707.71, 144,492.41 and 56,961.25 is: 78,604.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,707.71 : 144,492.41 = 56,961.25 : x
  2. Step 2: Convert to fraction form
    104,707.71/144,492.41 = 56,961.25/x
  3. Step 3: Cross multiply
    104,707.71x = 144,492.41 × 56,961.25
  4. Step 4: Simplify right side
    104,707.71x = 8,230,468,070.28
  5. Step 5: Solve for x
    x = 8,230,468,070.28/104,707.71
  6. Step 6: Final answer
    x = 78,604.22

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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.