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Finding the Fourth Proportional to 81,603.84, 112,613.04 and 45,794.02

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Solution

The fourth proportional to 81,603.84, 112,613.04 and 45,794.02 is: 63,195.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,603.84 : 112,613.04 = 45,794.02 : x
  2. Step 2: Convert to fraction form
    81,603.84/112,613.04 = 45,794.02/x
  3. Step 3: Cross multiply
    81,603.84x = 112,613.04 × 45,794.02
  4. Step 4: Simplify right side
    81,603.84x = 5,157,003,806.02
  5. Step 5: Solve for x
    x = 5,157,003,806.02/81,603.84
  6. Step 6: Final answer
    x = 63,195.60

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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.