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Finding the Fourth Proportional to 112,395.80, 168,484.13 and 44,907.72

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Solution

The fourth proportional to 112,395.80, 168,484.13 and 44,907.72 is: 67,317.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,395.80 : 168,484.13 = 44,907.72 : x
  2. Step 2: Convert to fraction form
    112,395.80/168,484.13 = 44,907.72/x
  3. Step 3: Cross multiply
    112,395.80x = 168,484.13 × 44,907.72
  4. Step 4: Simplify right side
    112,395.80x = 7,566,238,246.75
  5. Step 5: Solve for x
    x = 7,566,238,246.75/112,395.80
  6. Step 6: Final answer
    x = 67,317.80

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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.