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Finding the Fourth Proportional to 93,423.20, 140,134.80 and 31,093.70

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Solution

The fourth proportional to 93,423.20, 140,134.80 and 31,093.70 is: 46,640.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,423.20 : 140,134.80 = 31,093.70 : x
  2. Step 2: Convert to fraction form
    93,423.20/140,134.80 = 31,093.70/x
  3. Step 3: Cross multiply
    93,423.20x = 140,134.80 × 31,093.70
  4. Step 4: Simplify right side
    93,423.20x = 4,357,309,430.76
  5. Step 5: Solve for x
    x = 4,357,309,430.76/93,423.20
  6. Step 6: Final answer
    x = 46,640.55

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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.