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Finding the Fourth Proportional to 129,101.94, 178,110.90 and 95,190.89

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Solution

The fourth proportional to 129,101.94, 178,110.90 and 95,190.89 is: 131,326.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,101.94 : 178,110.90 = 95,190.89 : x
  2. Step 2: Convert to fraction form
    129,101.94/178,110.90 = 95,190.89/x
  3. Step 3: Cross multiply
    129,101.94x = 178,110.90 × 95,190.89
  4. Step 4: Simplify right side
    129,101.94x = 16,954,534,199.15
  5. Step 5: Solve for x
    x = 16,954,534,199.15/129,101.94
  6. Step 6: Final answer
    x = 131,326.72

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1.5x scale

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.