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Finding the Fourth Proportional to 140,657.79, 211,022.93 and 50,696.91

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Solution

The fourth proportional to 140,657.79, 211,022.93 and 50,696.91 is: 76,058.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,657.79 : 211,022.93 = 50,696.91 : x
  2. Step 2: Convert to fraction form
    140,657.79/211,022.93 = 50,696.91/x
  3. Step 3: Cross multiply
    140,657.79x = 211,022.93 × 50,696.91
  4. Step 4: Simplify right side
    140,657.79x = 10,698,210,616.89
  5. Step 5: Solve for x
    x = 10,698,210,616.89/140,657.79
  6. Step 6: Final answer
    x = 76,058.43

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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.