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Finding the Fourth Proportional to 140,733.99, 211,069.32 and 64,759.65

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Solution

The fourth proportional to 140,733.99, 211,069.32 and 64,759.65 is: 97,124.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,733.99 : 211,069.32 = 64,759.65 : x
  2. Step 2: Convert to fraction form
    140,733.99/211,069.32 = 64,759.65/x
  3. Step 3: Cross multiply
    140,733.99x = 211,069.32 × 64,759.65
  4. Step 4: Simplify right side
    140,733.99x = 13,668,775,806.12
  5. Step 5: Solve for x
    x = 13,668,775,806.12/140,733.99
  6. Step 6: Final answer
    x = 97,124.91

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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.