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Finding the Fourth Proportional to 472,339.72, 708,436.53 and 172,750.23

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Solution

The fourth proportional to 472,339.72, 708,436.53 and 172,750.23 is: 259,098.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,339.72 : 708,436.53 = 172,750.23 : x
  2. Step 2: Convert to fraction form
    472,339.72/708,436.53 = 172,750.23/x
  3. Step 3: Cross multiply
    472,339.72x = 708,436.53 × 172,750.23
  4. Step 4: Simplify right side
    472,339.72x = 122,382,576,161.51
  5. Step 5: Solve for x
    x = 122,382,576,161.51/472,339.72
  6. Step 6: Final answer
    x = 259,098.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.