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Finding the Fourth Proportional to 93,148.62, 139,638.66 and 33,970.42

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Solution

The fourth proportional to 93,148.62, 139,638.66 and 33,970.42 is: 50,924.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,148.62 : 139,638.66 = 33,970.42 : x
  2. Step 2: Convert to fraction form
    93,148.62/139,638.66 = 33,970.42/x
  3. Step 3: Cross multiply
    93,148.62x = 139,638.66 × 33,970.42
  4. Step 4: Simplify right side
    93,148.62x = 4,743,583,928.44
  5. Step 5: Solve for x
    x = 4,743,583,928.44/93,148.62
  6. Step 6: Final answer
    x = 50,924.90

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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.