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Finding the Fourth Proportional to 374,857.90, 562,286.88 and 108,618.60

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Solution

The fourth proportional to 374,857.90, 562,286.88 and 108,618.60 is: 162,927.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,857.90 : 562,286.88 = 108,618.60 : x
  2. Step 2: Convert to fraction form
    374,857.90/562,286.88 = 108,618.60/x
  3. Step 3: Cross multiply
    374,857.90x = 562,286.88 × 108,618.60
  4. Step 4: Simplify right side
    374,857.90x = 61,074,813,703.97
  5. Step 5: Solve for x
    x = 61,074,813,703.97/374,857.90
  6. Step 6: Final answer
    x = 162,927.91

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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.