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Finding the Fourth Proportional to 93,025.60, 139,570.80 and 40,472.80

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Solution

The fourth proportional to 93,025.60, 139,570.80 and 40,472.80 is: 60,723.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,025.60 : 139,570.80 = 40,472.80 : x
  2. Step 2: Convert to fraction form
    93,025.60/139,570.80 = 40,472.80/x
  3. Step 3: Cross multiply
    93,025.60x = 139,570.80 × 40,472.80
  4. Step 4: Simplify right side
    93,025.60x = 5,648,821,074.24
  5. Step 5: Solve for x
    x = 5,648,821,074.24/93,025.60
  6. Step 6: Final answer
    x = 60,723.30

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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.