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Finding the Fourth Proportional to 53,975.95, 81,012.07 and 53,775.01

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Solution

The fourth proportional to 53,975.95, 81,012.07 and 53,775.01 is: 80,710.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,975.95 : 81,012.07 = 53,775.01 : x
  2. Step 2: Convert to fraction form
    53,975.95/81,012.07 = 53,775.01/x
  3. Step 3: Cross multiply
    53,975.95x = 81,012.07 × 53,775.01
  4. Step 4: Simplify right side
    53,975.95x = 4,356,424,874.37
  5. Step 5: Solve for x
    x = 4,356,424,874.37/53,975.95
  6. Step 6: Final answer
    x = 80,710.48

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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.