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Finding the Fourth Proportional to 210,759.80, 290,847.88 and 113,962.98

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Solution

The fourth proportional to 210,759.80, 290,847.88 and 113,962.98 is: 157,268.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,759.80 : 290,847.88 = 113,962.98 : x
  2. Step 2: Convert to fraction form
    210,759.80/290,847.88 = 113,962.98/x
  3. Step 3: Cross multiply
    210,759.80x = 290,847.88 × 113,962.98
  4. Step 4: Simplify right side
    210,759.80x = 33,145,892,364.62
  5. Step 5: Solve for x
    x = 33,145,892,364.62/210,759.80
  6. Step 6: Final answer
    x = 157,268.57

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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.