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Finding the Fourth Proportional to 114,661.58, 158,307.92 and 74,489.83

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Solution

The fourth proportional to 114,661.58, 158,307.92 and 74,489.83 is: 102,844.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,661.58 : 158,307.92 = 74,489.83 : x
  2. Step 2: Convert to fraction form
    114,661.58/158,307.92 = 74,489.83/x
  3. Step 3: Cross multiply
    114,661.58x = 158,307.92 × 74,489.83
  4. Step 4: Simplify right side
    114,661.58x = 11,792,329,280.23
  5. Step 5: Solve for x
    x = 11,792,329,280.23/114,661.58
  6. Step 6: Final answer
    x = 102,844.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.