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Finding the Fourth Proportional to 70,053.19, 105,185.57 and 55,971.39

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Solution

The fourth proportional to 70,053.19, 105,185.57 and 55,971.39 is: 84,041.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,053.19 : 105,185.57 = 55,971.39 : x
  2. Step 2: Convert to fraction form
    70,053.19/105,185.57 = 55,971.39/x
  3. Step 3: Cross multiply
    70,053.19x = 105,185.57 × 55,971.39
  4. Step 4: Simplify right side
    70,053.19x = 5,887,382,560.84
  5. Step 5: Solve for x
    x = 5,887,382,560.84/70,053.19
  6. Step 6: Final answer
    x = 84,041.61

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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.