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Finding the Fourth Proportional to 93,459.10, 140,221.05 and 40,906.30

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Solution

The fourth proportional to 93,459.10, 140,221.05 and 40,906.30 is: 61,373.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,459.10 : 140,221.05 = 40,906.30 : x
  2. Step 2: Convert to fraction form
    93,459.10/140,221.05 = 40,906.30/x
  3. Step 3: Cross multiply
    93,459.10x = 140,221.05 × 40,906.30
  4. Step 4: Simplify right side
    93,459.10x = 5,735,924,337.62
  5. Step 5: Solve for x
    x = 5,735,924,337.62/93,459.10
  6. Step 6: Final answer
    x = 61,373.63

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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.