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Finding the Fourth Proportional to 114,587.78, 171,886.32 and 54,585.41

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Solution

The fourth proportional to 114,587.78, 171,886.32 and 54,585.41 is: 81,880.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,587.78 : 171,886.32 = 54,585.41 : x
  2. Step 2: Convert to fraction form
    114,587.78/171,886.32 = 54,585.41/x
  3. Step 3: Cross multiply
    114,587.78x = 171,886.32 × 54,585.41
  4. Step 4: Simplify right side
    114,587.78x = 9,382,484,391.16
  5. Step 5: Solve for x
    x = 9,382,484,391.16/114,587.78
  6. Step 6: Final answer
    x = 81,880.33

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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.