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Finding the Fourth Proportional to 154,368.91, 231,664.07 and 65,684.71

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Solution

The fourth proportional to 154,368.91, 231,664.07 and 65,684.71 is: 98,574.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,368.91 : 231,664.07 = 65,684.71 : x
  2. Step 2: Convert to fraction form
    154,368.91/231,664.07 = 65,684.71/x
  3. Step 3: Cross multiply
    154,368.91x = 231,664.07 × 65,684.71
  4. Step 4: Simplify right side
    154,368.91x = 15,216,787,255.37
  5. Step 5: Solve for x
    x = 15,216,787,255.37/154,368.91
  6. Step 6: Final answer
    x = 98,574.17

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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.