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Finding the Fourth Proportional to 79,692.82, 109,980.70 and 45,701.04

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Solution

The fourth proportional to 79,692.82, 109,980.70 and 45,701.04 is: 63,070.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,692.82 : 109,980.70 = 45,701.04 : x
  2. Step 2: Convert to fraction form
    79,692.82/109,980.70 = 45,701.04/x
  3. Step 3: Cross multiply
    79,692.82x = 109,980.70 × 45,701.04
  4. Step 4: Simplify right side
    79,692.82x = 5,026,232,209.23
  5. Step 5: Solve for x
    x = 5,026,232,209.23/79,692.82
  6. Step 6: Final answer
    x = 63,070.07

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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.