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Finding the Fourth Proportional to 92,715.09, 127,930.15 and 51,880.04

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Solution

The fourth proportional to 92,715.09, 127,930.15 and 51,880.04 is: 71,585.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,715.09 : 127,930.15 = 51,880.04 : x
  2. Step 2: Convert to fraction form
    92,715.09/127,930.15 = 51,880.04/x
  3. Step 3: Cross multiply
    92,715.09x = 127,930.15 × 51,880.04
  4. Step 4: Simplify right side
    92,715.09x = 6,637,021,204.14
  5. Step 5: Solve for x
    x = 6,637,021,204.14/92,715.09
  6. Step 6: Final answer
    x = 71,585.13

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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.