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Finding the Fourth Proportional to 93,135, 139,703.42 and 23,014.32

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Solution

The fourth proportional to 93,135, 139,703.42 and 23,014.32 is: 34,521.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,135 : 139,703.42 = 23,014.32 : x
  2. Step 2: Convert to fraction form
    93,135/139,703.42 = 23,014.32/x
  3. Step 3: Cross multiply
    93,135x = 139,703.42 × 23,014.32
  4. Step 4: Simplify right side
    93,135x = 3,215,179,212.97
  5. Step 5: Solve for x
    x = 3,215,179,212.97/93,135
  6. Step 6: Final answer
    x = 34,521.71

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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.