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Finding the Fourth Proportional to 79,503.62, 109,714.64 and 45,511.92

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Solution

The fourth proportional to 79,503.62, 109,714.64 and 45,511.92 is: 62,806.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,503.62 : 109,714.64 = 45,511.92 : x
  2. Step 2: Convert to fraction form
    79,503.62/109,714.64 = 45,511.92/x
  3. Step 3: Cross multiply
    79,503.62x = 109,714.64 × 45,511.92
  4. Step 4: Simplify right side
    79,503.62x = 4,993,323,918.51
  5. Step 5: Solve for x
    x = 4,993,323,918.51/79,503.62
  6. Step 6: Final answer
    x = 62,806.25

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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.