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Finding the Fourth Proportional to 98,729.70, 147,943.35 and 73,652.10

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Solution

The fourth proportional to 98,729.70, 147,943.35 and 73,652.10 is: 110,365.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,729.70 : 147,943.35 = 73,652.10 : x
  2. Step 2: Convert to fraction form
    98,729.70/147,943.35 = 73,652.10/x
  3. Step 3: Cross multiply
    98,729.70x = 147,943.35 × 73,652.10
  4. Step 4: Simplify right side
    98,729.70x = 10,896,338,408.54
  5. Step 5: Solve for x
    x = 10,896,338,408.54/98,729.70
  6. Step 6: Final answer
    x = 110,365.36

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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.