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Finding the Fourth Proportional to 191,168.76, 263,423.84 and 147,885.32

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Solution

The fourth proportional to 191,168.76, 263,423.84 and 147,885.32 is: 203,780.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,168.76 : 263,423.84 = 147,885.32 : x
  2. Step 2: Convert to fraction form
    191,168.76/263,423.84 = 147,885.32/x
  3. Step 3: Cross multiply
    191,168.76x = 263,423.84 × 147,885.32
  4. Step 4: Simplify right side
    191,168.76x = 38,956,518,874.03
  5. Step 5: Solve for x
    x = 38,956,518,874.03/191,168.76
  6. Step 6: Final answer
    x = 203,780.78

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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.