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Finding the Fourth Proportional to 98,866.17, 148,324.56 and 28,745.49

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Solution

The fourth proportional to 98,866.17, 148,324.56 and 28,745.49 is: 43,125.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,866.17 : 148,324.56 = 28,745.49 : x
  2. Step 2: Convert to fraction form
    98,866.17/148,324.56 = 28,745.49/x
  3. Step 3: Cross multiply
    98,866.17x = 148,324.56 × 28,745.49
  4. Step 4: Simplify right side
    98,866.17x = 4,263,662,156.23
  5. Step 5: Solve for x
    x = 4,263,662,156.23/98,866.17
  6. Step 6: Final answer
    x = 43,125.59

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1.5x scale

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.