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Finding the Fourth Proportional to 93,647.50, 140,471.39 and 38,243.50

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Solution

The fourth proportional to 93,647.50, 140,471.39 and 38,243.50 is: 57,365.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,647.50 : 140,471.39 = 38,243.50 : x
  2. Step 2: Convert to fraction form
    93,647.50/140,471.39 = 38,243.50/x
  3. Step 3: Cross multiply
    93,647.50x = 140,471.39 × 38,243.50
  4. Step 4: Simplify right side
    93,647.50x = 5,372,117,603.47
  5. Step 5: Solve for x
    x = 5,372,117,603.47/93,647.50
  6. Step 6: Final answer
    x = 57,365.31

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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.