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Finding the Fourth Proportional to 111,924.52, 167,870.19 and 40,830.51

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Solution

The fourth proportional to 111,924.52, 167,870.19 and 40,830.51 is: 61,239.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,924.52 : 167,870.19 = 40,830.51 : x
  2. Step 2: Convert to fraction form
    111,924.52/167,870.19 = 40,830.51/x
  3. Step 3: Cross multiply
    111,924.52x = 167,870.19 × 40,830.51
  4. Step 4: Simplify right side
    111,924.52x = 6,854,225,471.50
  5. Step 5: Solve for x
    x = 6,854,225,471.50/111,924.52
  6. Step 6: Final answer
    x = 61,239.71

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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.