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Finding the Fourth Proportional to 84,723.54, 127,007.54 and 29,280.66

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Solution

The fourth proportional to 84,723.54, 127,007.54 and 29,280.66 is: 43,894.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,723.54 : 127,007.54 = 29,280.66 : x
  2. Step 2: Convert to fraction form
    84,723.54/127,007.54 = 29,280.66/x
  3. Step 3: Cross multiply
    84,723.54x = 127,007.54 × 29,280.66
  4. Step 4: Simplify right side
    84,723.54x = 3,718,864,248.00
  5. Step 5: Solve for x
    x = 3,718,864,248.00/84,723.54
  6. Step 6: Final answer
    x = 43,894.11

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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.