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Finding the Fourth Proportional to 93,097.92, 128,471.31 and 50,656.47

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Solution

The fourth proportional to 93,097.92, 128,471.31 and 50,656.47 is: 69,903.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,097.92 : 128,471.31 = 50,656.47 : x
  2. Step 2: Convert to fraction form
    93,097.92/128,471.31 = 50,656.47/x
  3. Step 3: Cross multiply
    93,097.92x = 128,471.31 × 50,656.47
  4. Step 4: Simplify right side
    93,097.92x = 6,507,903,060.88
  5. Step 5: Solve for x
    x = 6,507,903,060.88/93,097.92
  6. Step 6: Final answer
    x = 69,903.85

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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.