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Finding the Fourth Proportional to 93,090.92, 139,698.96 and 92,748.44

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Solution

The fourth proportional to 93,090.92, 139,698.96 and 92,748.44 is: 139,185.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,090.92 : 139,698.96 = 92,748.44 : x
  2. Step 2: Convert to fraction form
    93,090.92/139,698.96 = 92,748.44/x
  3. Step 3: Cross multiply
    93,090.92x = 139,698.96 × 92,748.44
  4. Step 4: Simplify right side
    93,090.92x = 12,956,860,609.62
  5. Step 5: Solve for x
    x = 12,956,860,609.62/93,090.92
  6. Step 6: Final answer
    x = 139,185.01

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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.