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Finding the Fourth Proportional to 104,702.84, 144,492.26 and 56,958.76

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Solution

The fourth proportional to 104,702.84, 144,492.26 and 56,958.76 is: 78,604.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,702.84 : 144,492.26 = 56,958.76 : x
  2. Step 2: Convert to fraction form
    104,702.84/144,492.26 = 56,958.76/x
  3. Step 3: Cross multiply
    104,702.84x = 144,492.26 × 56,958.76
  4. Step 4: Simplify right side
    104,702.84x = 8,230,099,959.20
  5. Step 5: Solve for x
    x = 8,230,099,959.20/104,702.84
  6. Step 6: Final answer
    x = 78,604.36

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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.