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Finding the Fourth Proportional to 93,338.10, 140,007.15 and 31,008.60

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Solution

The fourth proportional to 93,338.10, 140,007.15 and 31,008.60 is: 46,512.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,338.10 : 140,007.15 = 31,008.60 : x
  2. Step 2: Convert to fraction form
    93,338.10/140,007.15 = 31,008.60/x
  3. Step 3: Cross multiply
    93,338.10x = 140,007.15 × 31,008.60
  4. Step 4: Simplify right side
    93,338.10x = 4,341,425,711.49
  5. Step 5: Solve for x
    x = 4,341,425,711.49/93,338.10
  6. Step 6: Final answer
    x = 46,512.90

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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.