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Finding the Fourth Proportional to 190,047.49, 260,868.41 and 168,055.30

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Solution

The fourth proportional to 190,047.49, 260,868.41 and 168,055.30 is: 230,680.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,047.49 : 260,868.41 = 168,055.30 : x
  2. Step 2: Convert to fraction form
    190,047.49/260,868.41 = 168,055.30/x
  3. Step 3: Cross multiply
    190,047.49x = 260,868.41 × 168,055.30
  4. Step 4: Simplify right side
    190,047.49x = 43,840,318,903.07
  5. Step 5: Solve for x
    x = 43,840,318,903.07/190,047.49
  6. Step 6: Final answer
    x = 230,680.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.