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Finding the Fourth Proportional to 112,573.65, 168,860.76 and 46,013.79

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Solution

The fourth proportional to 112,573.65, 168,860.76 and 46,013.79 is: 69,020.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,573.65 : 168,860.76 = 46,013.79 : x
  2. Step 2: Convert to fraction form
    112,573.65/168,860.76 = 46,013.79/x
  3. Step 3: Cross multiply
    112,573.65x = 168,860.76 × 46,013.79
  4. Step 4: Simplify right side
    112,573.65x = 7,769,923,549.88
  5. Step 5: Solve for x
    x = 7,769,923,549.88/112,573.65
  6. Step 6: Final answer
    x = 69,020.80

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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.