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Finding the Fourth Proportional to 93,313.20, 139,969.80 and 58,272.60

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Solution

The fourth proportional to 93,313.20, 139,969.80 and 58,272.60 is: 87,408.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,313.20 : 139,969.80 = 58,272.60 : x
  2. Step 2: Convert to fraction form
    93,313.20/139,969.80 = 58,272.60/x
  3. Step 3: Cross multiply
    93,313.20x = 139,969.80 × 58,272.60
  4. Step 4: Simplify right side
    93,313.20x = 8,156,404,167.48
  5. Step 5: Solve for x
    x = 8,156,404,167.48/93,313.20
  6. Step 6: Final answer
    x = 87,408.90

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1.5x scale

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.