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Finding the Fourth Proportional to 112,992, 155,928.84 and 62,005.02

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Solution

The fourth proportional to 112,992, 155,928.84 and 62,005.02 is: 85,566.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,992 : 155,928.84 = 62,005.02 : x
  2. Step 2: Convert to fraction form
    112,992/155,928.84 = 62,005.02/x
  3. Step 3: Cross multiply
    112,992x = 155,928.84 × 62,005.02
  4. Step 4: Simplify right side
    112,992x = 9,668,370,842.78
  5. Step 5: Solve for x
    x = 9,668,370,842.78/112,992
  6. Step 6: Final answer
    x = 85,566.86

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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.