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Finding the Fourth Proportional to 85,124.95, 117,468.22 and 49,326.49

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Solution

The fourth proportional to 85,124.95, 117,468.22 and 49,326.49 is: 68,068.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,124.95 : 117,468.22 = 49,326.49 : x
  2. Step 2: Convert to fraction form
    85,124.95/117,468.22 = 49,326.49/x
  3. Step 3: Cross multiply
    85,124.95x = 117,468.22 × 49,326.49
  4. Step 4: Simplify right side
    85,124.95x = 5,794,294,979.15
  5. Step 5: Solve for x
    x = 5,794,294,979.15/85,124.95
  6. Step 6: Final answer
    x = 68,068.12

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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.