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Finding the Fourth Proportional to 98,329.95, 147,538.26 and 51,571.89

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Solution

The fourth proportional to 98,329.95, 147,538.26 and 51,571.89 is: 77,380.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,329.95 : 147,538.26 = 51,571.89 : x
  2. Step 2: Convert to fraction form
    98,329.95/147,538.26 = 51,571.89/x
  3. Step 3: Cross multiply
    98,329.95x = 147,538.26 × 51,571.89
  4. Step 4: Simplify right side
    98,329.95x = 7,608,826,915.51
  5. Step 5: Solve for x
    x = 7,608,826,915.51/98,329.95
  6. Step 6: Final answer
    x = 77,380.56

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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.