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Finding the Fourth Proportional to 92,699.72, 127,916.04 and 56,891.24

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Solution

The fourth proportional to 92,699.72, 127,916.04 and 56,891.24 is: 78,504.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,699.72 : 127,916.04 = 56,891.24 : x
  2. Step 2: Convert to fraction form
    92,699.72/127,916.04 = 56,891.24/x
  3. Step 3: Cross multiply
    92,699.72x = 127,916.04 × 56,891.24
  4. Step 4: Simplify right side
    92,699.72x = 7,277,302,131.49
  5. Step 5: Solve for x
    x = 7,277,302,131.49/92,699.72
  6. Step 6: Final answer
    x = 78,504.04

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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.