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Finding the Fourth Proportional to 370,664.91, 555,991.29 and 117,960.71

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Solution

The fourth proportional to 370,664.91, 555,991.29 and 117,960.71 is: 176,939.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,664.91 : 555,991.29 = 117,960.71 : x
  2. Step 2: Convert to fraction form
    370,664.91/555,991.29 = 117,960.71/x
  3. Step 3: Cross multiply
    370,664.91x = 555,991.29 × 117,960.71
  4. Step 4: Simplify right side
    370,664.91x = 65,585,124,542.26
  5. Step 5: Solve for x
    x = 65,585,124,542.26/370,664.91
  6. Step 6: Final answer
    x = 176,939.12

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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.