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Finding the Fourth Proportional to 93,062.81, 128,427.30 and 50,621.65

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Solution

The fourth proportional to 93,062.81, 128,427.30 and 50,621.65 is: 69,858.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,062.81 : 128,427.30 = 50,621.65 : x
  2. Step 2: Convert to fraction form
    93,062.81/128,427.30 = 50,621.65/x
  3. Step 3: Cross multiply
    93,062.81x = 128,427.30 × 50,621.65
  4. Step 4: Simplify right side
    93,062.81x = 6,501,201,509.98
  5. Step 5: Solve for x
    x = 6,501,201,509.98/93,062.81
  6. Step 6: Final answer
    x = 69,858.21

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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.