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Finding the Fourth Proportional to 191,942.70, 288,000.45 and 92,064.30

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Solution

The fourth proportional to 191,942.70, 288,000.45 and 92,064.30 is: 138,137.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,942.70 : 288,000.45 = 92,064.30 : x
  2. Step 2: Convert to fraction form
    191,942.70/288,000.45 = 92,064.30/x
  3. Step 3: Cross multiply
    191,942.70x = 288,000.45 × 92,064.30
  4. Step 4: Simplify right side
    191,942.70x = 26,514,559,828.94
  5. Step 5: Solve for x
    x = 26,514,559,828.94/191,942.70
  6. Step 6: Final answer
    x = 138,137.89

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1.5x scale

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.