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Finding the Fourth Proportional to 79,312.49, 118,999.88 and 34,908.11

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Solution

The fourth proportional to 79,312.49, 118,999.88 and 34,908.11 is: 52,375.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,312.49 : 118,999.88 = 34,908.11 : x
  2. Step 2: Convert to fraction form
    79,312.49/118,999.88 = 34,908.11/x
  3. Step 3: Cross multiply
    79,312.49x = 118,999.88 × 34,908.11
  4. Step 4: Simplify right side
    79,312.49x = 4,154,060,603.53
  5. Step 5: Solve for x
    x = 4,154,060,603.53/79,312.49
  6. Step 6: Final answer
    x = 52,375.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.