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Finding the Fourth Proportional to 93,466.90, 140,200.35 and 31,137.40

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Solution

The fourth proportional to 93,466.90, 140,200.35 and 31,137.40 is: 46,706.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,466.90 : 140,200.35 = 31,137.40 : x
  2. Step 2: Convert to fraction form
    93,466.90/140,200.35 = 31,137.40/x
  3. Step 3: Cross multiply
    93,466.90x = 140,200.35 × 31,137.40
  4. Step 4: Simplify right side
    93,466.90x = 4,365,474,378.09
  5. Step 5: Solve for x
    x = 4,365,474,378.09/93,466.90
  6. Step 6: Final answer
    x = 46,706.10

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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.