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Finding the Fourth Proportional to 93,031.68, 139,606.72 and 33,861.60

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Solution

The fourth proportional to 93,031.68, 139,606.72 and 33,861.60 is: 50,813.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,031.68 : 139,606.72 = 33,861.60 : x
  2. Step 2: Convert to fraction form
    93,031.68/139,606.72 = 33,861.60/x
  3. Step 3: Cross multiply
    93,031.68x = 139,606.72 × 33,861.60
  4. Step 4: Simplify right side
    93,031.68x = 4,727,306,909.95
  5. Step 5: Solve for x
    x = 4,727,306,909.95/93,031.68
  6. Step 6: Final answer
    x = 50,813.95

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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.