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Finding the Fourth Proportional to 84,782.91, 127,233.90 and 34,908.38

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Solution

The fourth proportional to 84,782.91, 127,233.90 and 34,908.38 is: 52,387.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,782.91 : 127,233.90 = 34,908.38 : x
  2. Step 2: Convert to fraction form
    84,782.91/127,233.90 = 34,908.38/x
  3. Step 3: Cross multiply
    84,782.91x = 127,233.90 × 34,908.38
  4. Step 4: Simplify right side
    84,782.91x = 4,441,528,693.91
  5. Step 5: Solve for x
    x = 4,441,528,693.91/84,782.91
  6. Step 6: Final answer
    x = 52,387.08

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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.