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Finding the Fourth Proportional to 118,519.98, 163,524.60 and 70,755.90

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Solution

The fourth proportional to 118,519.98, 163,524.60 and 70,755.90 is: 97,623.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,519.98 : 163,524.60 = 70,755.90 : x
  2. Step 2: Convert to fraction form
    118,519.98/163,524.60 = 70,755.90/x
  3. Step 3: Cross multiply
    118,519.98x = 163,524.60 × 70,755.90
  4. Step 4: Simplify right side
    118,519.98x = 11,570,330,245.14
  5. Step 5: Solve for x
    x = 11,570,330,245.14/118,519.98
  6. Step 6: Final answer
    x = 97,623.46

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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.