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Finding the Fourth Proportional to 120,653.50, 166,501.97 and 70,362.22

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Solution

The fourth proportional to 120,653.50, 166,501.97 and 70,362.22 is: 97,099.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,653.50 : 166,501.97 = 70,362.22 : x
  2. Step 2: Convert to fraction form
    120,653.50/166,501.97 = 70,362.22/x
  3. Step 3: Cross multiply
    120,653.50x = 166,501.97 × 70,362.22
  4. Step 4: Simplify right side
    120,653.50x = 11,715,448,243.57
  5. Step 5: Solve for x
    x = 11,715,448,243.57/120,653.50
  6. Step 6: Final answer
    x = 97,099.95

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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.