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Finding the Fourth Proportional to 118,858.64, 178,286.59 and 28,901.86

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Solution

The fourth proportional to 118,858.64, 178,286.59 and 28,901.86 is: 43,352.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,858.64 : 178,286.59 = 28,901.86 : x
  2. Step 2: Convert to fraction form
    118,858.64/178,286.59 = 28,901.86/x
  3. Step 3: Cross multiply
    118,858.64x = 178,286.59 × 28,901.86
  4. Step 4: Simplify right side
    118,858.64x = 5,152,814,064.06
  5. Step 5: Solve for x
    x = 5,152,814,064.06/118,858.64
  6. Step 6: Final answer
    x = 43,352.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.