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Finding the Fourth Proportional to 98,993.33, 136,611.77 and 53,671.19

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Solution

The fourth proportional to 98,993.33, 136,611.77 and 53,671.19 is: 74,066.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,993.33 : 136,611.77 = 53,671.19 : x
  2. Step 2: Convert to fraction form
    98,993.33/136,611.77 = 53,671.19/x
  3. Step 3: Cross multiply
    98,993.33x = 136,611.77 × 53,671.19
  4. Step 4: Simplify right side
    98,993.33x = 7,332,115,312.49
  5. Step 5: Solve for x
    x = 7,332,115,312.49/98,993.33
  6. Step 6: Final answer
    x = 74,066.76

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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.