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Finding the Fourth Proportional to 93,243.72, 139,869.90 and 26,693.31

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Solution

The fourth proportional to 93,243.72, 139,869.90 and 26,693.31 is: 40,041.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,243.72 : 139,869.90 = 26,693.31 : x
  2. Step 2: Convert to fraction form
    93,243.72/139,869.90 = 26,693.31/x
  3. Step 3: Cross multiply
    93,243.72x = 139,869.90 × 26,693.31
  4. Step 4: Simplify right side
    93,243.72x = 3,733,590,600.37
  5. Step 5: Solve for x
    x = 3,733,590,600.37/93,243.72
  6. Step 6: Final answer
    x = 40,041.20

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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.