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Finding the Fourth Proportional to 98,165.85, 135,474.56 and 73,923.40

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Solution

The fourth proportional to 98,165.85, 135,474.56 and 73,923.40 is: 102,018.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,165.85 : 135,474.56 = 73,923.40 : x
  2. Step 2: Convert to fraction form
    98,165.85/135,474.56 = 73,923.40/x
  3. Step 3: Cross multiply
    98,165.85x = 135,474.56 × 73,923.40
  4. Step 4: Simplify right side
    98,165.85x = 10,014,740,088.70
  5. Step 5: Solve for x
    x = 10,014,740,088.70/98,165.85
  6. Step 6: Final answer
    x = 102,018.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.