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Finding the Fourth Proportional to 79,696.85, 109,985.04 and 45,714.92

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Solution

The fourth proportional to 79,696.85, 109,985.04 and 45,714.92 is: 63,088.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,696.85 : 109,985.04 = 45,714.92 : x
  2. Step 2: Convert to fraction form
    79,696.85/109,985.04 = 45,714.92/x
  3. Step 3: Cross multiply
    79,696.85x = 109,985.04 × 45,714.92
  4. Step 4: Simplify right side
    79,696.85x = 5,027,956,754.87
  5. Step 5: Solve for x
    x = 5,027,956,754.87/79,696.85
  6. Step 6: Final answer
    x = 63,088.53

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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.