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Finding the Fourth Proportional to 265,551.65, 397,929.71 and 115,710.73

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Solution

The fourth proportional to 265,551.65, 397,929.71 and 115,710.73 is: 173,392.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,551.65 : 397,929.71 = 115,710.73 : x
  2. Step 2: Convert to fraction form
    265,551.65/397,929.71 = 115,710.73/x
  3. Step 3: Cross multiply
    265,551.65x = 397,929.71 × 115,710.73
  4. Step 4: Simplify right side
    265,551.65x = 46,044,736,527.24
  5. Step 5: Solve for x
    x = 46,044,736,527.24/265,551.65
  6. Step 6: Final answer
    x = 173,392.77

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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.