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Finding the Fourth Proportional to 104,705.66, 144,495.54 and 56,959.26

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Solution

The fourth proportional to 104,705.66, 144,495.54 and 56,959.26 is: 78,604.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,705.66 : 144,495.54 = 56,959.26 : x
  2. Step 2: Convert to fraction form
    104,705.66/144,495.54 = 56,959.26/x
  3. Step 3: Cross multiply
    104,705.66x = 144,495.54 × 56,959.26
  4. Step 4: Simplify right side
    104,705.66x = 8,230,359,031.70
  5. Step 5: Solve for x
    x = 8,230,359,031.70/104,705.66
  6. Step 6: Final answer
    x = 78,604.72

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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.