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Finding the Fourth Proportional to 307,339.08, 424,133.16 and 169,533.83

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Solution

The fourth proportional to 307,339.08, 424,133.16 and 169,533.83 is: 233,959.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,339.08 : 424,133.16 = 169,533.83 : x
  2. Step 2: Convert to fraction form
    307,339.08/424,133.16 = 169,533.83/x
  3. Step 3: Cross multiply
    307,339.08x = 424,133.16 × 169,533.83
  4. Step 4: Simplify right side
    307,339.08x = 71,904,916,924.14
  5. Step 5: Solve for x
    x = 71,904,916,924.14/307,339.08
  6. Step 6: Final answer
    x = 233,959.56

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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.