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Finding the Fourth Proportional to 143,567.62, 198,118.22 and 79,904.04

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Solution

The fourth proportional to 143,567.62, 198,118.22 and 79,904.04 is: 110,264.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,567.62 : 198,118.22 = 79,904.04 : x
  2. Step 2: Convert to fraction form
    143,567.62/198,118.22 = 79,904.04/x
  3. Step 3: Cross multiply
    143,567.62x = 198,118.22 × 79,904.04
  4. Step 4: Simplify right side
    143,567.62x = 15,830,446,175.61
  5. Step 5: Solve for x
    x = 15,830,446,175.61/143,567.62
  6. Step 6: Final answer
    x = 110,264.74

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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.