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Finding the Fourth Proportional to 118,646.56, 163,731.01 and 67,667.59

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Solution

The fourth proportional to 118,646.56, 163,731.01 and 67,667.59 is: 93,380.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,646.56 : 163,731.01 = 67,667.59 : x
  2. Step 2: Convert to fraction form
    118,646.56/163,731.01 = 67,667.59/x
  3. Step 3: Cross multiply
    118,646.56x = 163,731.01 × 67,667.59
  4. Step 4: Simplify right side
    118,646.56x = 11,079,281,697.97
  5. Step 5: Solve for x
    x = 11,079,281,697.97/118,646.56
  6. Step 6: Final answer
    x = 93,380.56

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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.