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Finding the Fourth Proportional to 369,205.65, 553,808.41 and 88,722.90

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Solution

The fourth proportional to 369,205.65, 553,808.41 and 88,722.90 is: 133,084.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,205.65 : 553,808.41 = 88,722.90 : x
  2. Step 2: Convert to fraction form
    369,205.65/553,808.41 = 88,722.90/x
  3. Step 3: Cross multiply
    369,205.65x = 553,808.41 × 88,722.90
  4. Step 4: Simplify right side
    369,205.65x = 49,135,487,735.97
  5. Step 5: Solve for x
    x = 49,135,487,735.97/369,205.65
  6. Step 6: Final answer
    x = 133,084.33

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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.