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Finding the Fourth Proportional to 84,694.91, 127,063.71 and 59,783.63

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Solution

The fourth proportional to 84,694.91, 127,063.71 and 59,783.63 is: 89,690.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,694.91 : 127,063.71 = 59,783.63 : x
  2. Step 2: Convert to fraction form
    84,694.91/127,063.71 = 59,783.63/x
  3. Step 3: Cross multiply
    84,694.91x = 127,063.71 × 59,783.63
  4. Step 4: Simplify right side
    84,694.91x = 7,596,329,189.75
  5. Step 5: Solve for x
    x = 7,596,329,189.75/84,694.91
  6. Step 6: Final answer
    x = 89,690.51

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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.