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Finding the Fourth Proportional to 118,314.67, 163,250.48 and 75,311.47

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Solution

The fourth proportional to 118,314.67, 163,250.48 and 75,311.47 is: 103,914.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,314.67 : 163,250.48 = 75,311.47 : x
  2. Step 2: Convert to fraction form
    118,314.67/163,250.48 = 75,311.47/x
  3. Step 3: Cross multiply
    118,314.67x = 163,250.48 × 75,311.47
  4. Step 4: Simplify right side
    118,314.67x = 12,294,633,250.45
  5. Step 5: Solve for x
    x = 12,294,633,250.45/118,314.67
  6. Step 6: Final answer
    x = 103,914.70

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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.