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Finding the Fourth Proportional to 93,730.80, 140,596.20 and 31,401.30

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Solution

The fourth proportional to 93,730.80, 140,596.20 and 31,401.30 is: 47,101.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,730.80 : 140,596.20 = 31,401.30 : x
  2. Step 2: Convert to fraction form
    93,730.80/140,596.20 = 31,401.30/x
  3. Step 3: Cross multiply
    93,730.80x = 140,596.20 × 31,401.30
  4. Step 4: Simplify right side
    93,730.80x = 4,414,903,455.06
  5. Step 5: Solve for x
    x = 4,414,903,455.06/93,730.80
  6. Step 6: Final answer
    x = 47,101.95

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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.