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Finding the Fourth Proportional to 73,422.10, 102,998.30 and 73,422.10

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Solution

The fourth proportional to 73,422.10, 102,998.30 and 73,422.10 is: 102,998.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,422.10 : 102,998.30 = 73,422.10 : x
  2. Step 2: Convert to fraction form
    73,422.10/102,998.30 = 73,422.10/x
  3. Step 3: Cross multiply
    73,422.10x = 102,998.30 × 73,422.10
  4. Step 4: Simplify right side
    73,422.10x = 7,562,351,482.43
  5. Step 5: Solve for x
    x = 7,562,351,482.43/73,422.10
  6. Step 6: Final answer
    x = 102,998.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.