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Finding the Fourth Proportional to 93,207.90, 139,801.39 and 25,749.53

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Solution

The fourth proportional to 93,207.90, 139,801.39 and 25,749.53 is: 38,621.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,207.90 : 139,801.39 = 25,749.53 : x
  2. Step 2: Convert to fraction form
    93,207.90/139,801.39 = 25,749.53/x
  3. Step 3: Cross multiply
    93,207.90x = 139,801.39 × 25,749.53
  4. Step 4: Simplify right side
    93,207.90x = 3,599,820,085.85
  5. Step 5: Solve for x
    x = 3,599,820,085.85/93,207.90
  6. Step 6: Final answer
    x = 38,621.41

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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.