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Finding the Fourth Proportional to 93,401.70, 140,102.55 and 31,072.20

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Solution

The fourth proportional to 93,401.70, 140,102.55 and 31,072.20 is: 46,608.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,401.70 : 140,102.55 = 31,072.20 : x
  2. Step 2: Convert to fraction form
    93,401.70/140,102.55 = 31,072.20/x
  3. Step 3: Cross multiply
    93,401.70x = 140,102.55 × 31,072.20
  4. Step 4: Simplify right side
    93,401.70x = 4,353,294,454.11
  5. Step 5: Solve for x
    x = 4,353,294,454.11/93,401.70
  6. Step 6: Final answer
    x = 46,608.30

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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.