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Finding the Fourth Proportional to 93,205.89, 139,789.19 and 30,031.76

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Solution

The fourth proportional to 93,205.89, 139,789.19 and 30,031.76 is: 45,041.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,205.89 : 139,789.19 = 30,031.76 : x
  2. Step 2: Convert to fraction form
    93,205.89/139,789.19 = 30,031.76/x
  3. Step 3: Cross multiply
    93,205.89x = 139,789.19 × 30,031.76
  4. Step 4: Simplify right side
    93,205.89x = 4,198,115,829.23
  5. Step 5: Solve for x
    x = 4,198,115,829.23/93,205.89
  6. Step 6: Final answer
    x = 45,041.31

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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.