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Finding the Fourth Proportional to 79,492.15, 109,705.29 and 45,511.34

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Solution

The fourth proportional to 79,492.15, 109,705.29 and 45,511.34 is: 62,809.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,492.15 : 109,705.29 = 45,511.34 : x
  2. Step 2: Convert to fraction form
    79,492.15/109,705.29 = 45,511.34/x
  3. Step 3: Cross multiply
    79,492.15x = 109,705.29 × 45,511.34
  4. Step 4: Simplify right side
    79,492.15x = 4,992,834,033.79
  5. Step 5: Solve for x
    x = 4,992,834,033.79/79,492.15
  6. Step 6: Final answer
    x = 62,809.14

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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.