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Finding the Fourth Proportional to 217,533.54, 300,127.99 and 125,641.10

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Solution

The fourth proportional to 217,533.54, 300,127.99 and 125,641.10 is: 173,345.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,533.54 : 300,127.99 = 125,641.10 : x
  2. Step 2: Convert to fraction form
    217,533.54/300,127.99 = 125,641.10/x
  3. Step 3: Cross multiply
    217,533.54x = 300,127.99 × 125,641.10
  4. Step 4: Simplify right side
    217,533.54x = 37,708,410,720.42
  5. Step 5: Solve for x
    x = 37,708,410,720.42/217,533.54
  6. Step 6: Final answer
    x = 173,345.27

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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.