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Finding the Fourth Proportional to 51,282.99, 70,705.71 and 43,618.77

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Solution

The fourth proportional to 51,282.99, 70,705.71 and 43,618.77 is: 60,138.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,282.99 : 70,705.71 = 43,618.77 : x
  2. Step 2: Convert to fraction form
    51,282.99/70,705.71 = 43,618.77/x
  3. Step 3: Cross multiply
    51,282.99x = 70,705.71 × 43,618.77
  4. Step 4: Simplify right side
    51,282.99x = 3,084,096,102.18
  5. Step 5: Solve for x
    x = 3,084,096,102.18/51,282.99
  6. Step 6: Final answer
    x = 60,138.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.