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Finding the Fourth Proportional to 73,410.15, 102,912.45 and 73,410.15

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Solution

The fourth proportional to 73,410.15, 102,912.45 and 73,410.15 is: 102,912.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,410.15 : 102,912.45 = 73,410.15 : x
  2. Step 2: Convert to fraction form
    73,410.15/102,912.45 = 73,410.15/x
  3. Step 3: Cross multiply
    73,410.15x = 102,912.45 × 73,410.15
  4. Step 4: Simplify right side
    73,410.15x = 7,554,818,391.37
  5. Step 5: Solve for x
    x = 7,554,818,391.37/73,410.15
  6. Step 6: Final answer
    x = 102,912.45

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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.