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Finding the Fourth Proportional to 154,423.70, 231,646.35 and 60,917.30

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Solution

The fourth proportional to 154,423.70, 231,646.35 and 60,917.30 is: 91,380.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,423.70 : 231,646.35 = 60,917.30 : x
  2. Step 2: Convert to fraction form
    154,423.70/231,646.35 = 60,917.30/x
  3. Step 3: Cross multiply
    154,423.70x = 231,646.35 × 60,917.30
  4. Step 4: Simplify right side
    154,423.70x = 14,111,270,196.86
  5. Step 5: Solve for x
    x = 14,111,270,196.86/154,423.70
  6. Step 6: Final answer
    x = 91,380.21

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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.