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Finding the Fourth Proportional to 93,200.90, 139,790.89 and 25,742.53

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Solution

The fourth proportional to 93,200.90, 139,790.89 and 25,742.53 is: 38,610.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,200.90 : 139,790.89 = 25,742.53 : x
  2. Step 2: Convert to fraction form
    93,200.90/139,790.89 = 25,742.53/x
  3. Step 3: Cross multiply
    93,200.90x = 139,790.89 × 25,742.53
  4. Step 4: Simplify right side
    93,200.90x = 3,598,570,351.88
  5. Step 5: Solve for x
    x = 3,598,570,351.88/93,200.90
  6. Step 6: Final answer
    x = 38,610.90

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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.