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Finding the Fourth Proportional to 117,551.84, 162,271.19 and 79,363.11

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Solution

The fourth proportional to 117,551.84, 162,271.19 and 79,363.11 is: 109,554.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,551.84 : 162,271.19 = 79,363.11 : x
  2. Step 2: Convert to fraction form
    117,551.84/162,271.19 = 79,363.11/x
  3. Step 3: Cross multiply
    117,551.84x = 162,271.19 × 79,363.11
  4. Step 4: Simplify right side
    117,551.84x = 12,878,346,703.05
  5. Step 5: Solve for x
    x = 12,878,346,703.05/117,551.84
  6. Step 6: Final answer
    x = 109,554.62

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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.