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Finding the Fourth Proportional to 55,959.93, 83,939.90 and 52,538.49

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Solution

The fourth proportional to 55,959.93, 83,939.90 and 52,538.49 is: 78,807.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,959.93 : 83,939.90 = 52,538.49 : x
  2. Step 2: Convert to fraction form
    55,959.93/83,939.90 = 52,538.49/x
  3. Step 3: Cross multiply
    55,959.93x = 83,939.90 × 52,538.49
  4. Step 4: Simplify right side
    55,959.93x = 4,410,075,334.06
  5. Step 5: Solve for x
    x = 4,410,075,334.06/55,959.93
  6. Step 6: Final answer
    x = 78,807.74

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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.