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Finding the Fourth Proportional to 140,886.65, 211,309.54 and 46,120.59

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Solution

The fourth proportional to 140,886.65, 211,309.54 and 46,120.59 is: 69,174.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,886.65 : 211,309.54 = 46,120.59 : x
  2. Step 2: Convert to fraction form
    140,886.65/211,309.54 = 46,120.59/x
  3. Step 3: Cross multiply
    140,886.65x = 211,309.54 × 46,120.59
  4. Step 4: Simplify right side
    140,886.65x = 9,745,719,370.28
  5. Step 5: Solve for x
    x = 9,745,719,370.28/140,886.65
  6. Step 6: Final answer
    x = 69,174.19

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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.