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Finding the Fourth Proportional to 93,102.21, 128,483.73 and 50,663.43

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Solution

The fourth proportional to 93,102.21, 128,483.73 and 50,663.43 is: 69,916.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,102.21 : 128,483.73 = 50,663.43 : x
  2. Step 2: Convert to fraction form
    93,102.21/128,483.73 = 50,663.43/x
  3. Step 3: Cross multiply
    93,102.21x = 128,483.73 × 50,663.43
  4. Step 4: Simplify right side
    93,102.21x = 6,509,426,460.99
  5. Step 5: Solve for x
    x = 6,509,426,460.99/93,102.21
  6. Step 6: Final answer
    x = 69,916.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.