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Finding the Fourth Proportional to 190,393.59, 262,658.60 and 122,397.94

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Solution

The fourth proportional to 190,393.59, 262,658.60 and 122,397.94 is: 168,854.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,393.59 : 262,658.60 = 122,397.94 : x
  2. Step 2: Convert to fraction form
    190,393.59/262,658.60 = 122,397.94/x
  3. Step 3: Cross multiply
    190,393.59x = 262,658.60 × 122,397.94
  4. Step 4: Simplify right side
    190,393.59x = 32,148,871,563.28
  5. Step 5: Solve for x
    x = 32,148,871,563.28/190,393.59
  6. Step 6: Final answer
    x = 168,854.80

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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.