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Finding the Fourth Proportional to 190,507.58, 285,200.80 and 127,170.60

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Solution

The fourth proportional to 190,507.58, 285,200.80 and 127,170.60 is: 190,381.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,507.58 : 285,200.80 = 127,170.60 : x
  2. Step 2: Convert to fraction form
    190,507.58/285,200.80 = 127,170.60/x
  3. Step 3: Cross multiply
    190,507.58x = 285,200.80 × 127,170.60
  4. Step 4: Simplify right side
    190,507.58x = 36,269,156,538.55
  5. Step 5: Solve for x
    x = 36,269,156,538.55/190,507.58
  6. Step 6: Final answer
    x = 190,381.70

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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.