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Finding the Fourth Proportional to 259,772.84, 389,587.76 and 88,992.04

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Solution

The fourth proportional to 259,772.84, 389,587.76 and 88,992.04 is: 133,463.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,772.84 : 389,587.76 = 88,992.04 : x
  2. Step 2: Convert to fraction form
    259,772.84/389,587.76 = 88,992.04/x
  3. Step 3: Cross multiply
    259,772.84x = 389,587.76 × 88,992.04
  4. Step 4: Simplify right side
    259,772.84x = 34,670,209,521.43
  5. Step 5: Solve for x
    x = 34,670,209,521.43/259,772.84
  6. Step 6: Final answer
    x = 133,463.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.