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Finding the Fourth Proportional to 93,213.60, 139,795.20 and 40,610.40

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Solution

The fourth proportional to 93,213.60, 139,795.20 and 40,610.40 is: 60,904.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,213.60 : 139,795.20 = 40,610.40 : x
  2. Step 2: Convert to fraction form
    93,213.60/139,795.20 = 40,610.40/x
  3. Step 3: Cross multiply
    93,213.60x = 139,795.20 × 40,610.40
  4. Step 4: Simplify right side
    93,213.60x = 5,677,138,990.08
  5. Step 5: Solve for x
    x = 5,677,138,990.08/93,213.60
  6. Step 6: Final answer
    x = 60,904.62

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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.