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Finding the Fourth Proportional to 307,772.92, 424,739.46 and 171,814.42

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Solution

The fourth proportional to 307,772.92, 424,739.46 and 171,814.42 is: 237,111.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,772.92 : 424,739.46 = 171,814.42 : x
  2. Step 2: Convert to fraction form
    307,772.92/424,739.46 = 171,814.42/x
  3. Step 3: Cross multiply
    307,772.92x = 424,739.46 × 171,814.42
  4. Step 4: Simplify right side
    307,772.92x = 72,976,363,971.01
  5. Step 5: Solve for x
    x = 72,976,363,971.01/307,772.92
  6. Step 6: Final answer
    x = 237,111.06

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1.5x scale

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.