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Finding the Fourth Proportional to 118,399.68, 163,391.49 and 67,409.77

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Solution

The fourth proportional to 118,399.68, 163,391.49 and 67,409.77 is: 93,025.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,399.68 : 163,391.49 = 67,409.77 : x
  2. Step 2: Convert to fraction form
    118,399.68/163,391.49 = 67,409.77/x
  3. Step 3: Cross multiply
    118,399.68x = 163,391.49 × 67,409.77
  4. Step 4: Simplify right side
    118,399.68x = 11,014,182,760.86
  5. Step 5: Solve for x
    x = 11,014,182,760.86/118,399.68
  6. Step 6: Final answer
    x = 93,025.44

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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.