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Finding the Fourth Proportional to 155,169.42, 214,133.94 and 88,101.42

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Solution

The fourth proportional to 155,169.42, 214,133.94 and 88,101.42 is: 121,580.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,169.42 : 214,133.94 = 88,101.42 : x
  2. Step 2: Convert to fraction form
    155,169.42/214,133.94 = 88,101.42/x
  3. Step 3: Cross multiply
    155,169.42x = 214,133.94 × 88,101.42
  4. Step 4: Simplify right side
    155,169.42x = 18,865,504,184.19
  5. Step 5: Solve for x
    x = 18,865,504,184.19/155,169.42
  6. Step 6: Final answer
    x = 121,580.04

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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.