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Finding the Fourth Proportional to 191,486.63, 287,361.18 and 66,827.63

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Solution

The fourth proportional to 191,486.63, 287,361.18 and 66,827.63 is: 100,287.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,486.63 : 287,361.18 = 66,827.63 : x
  2. Step 2: Convert to fraction form
    191,486.63/287,361.18 = 66,827.63/x
  3. Step 3: Cross multiply
    191,486.63x = 287,361.18 × 66,827.63
  4. Step 4: Simplify right side
    191,486.63x = 19,203,665,176.60
  5. Step 5: Solve for x
    x = 19,203,665,176.60/191,486.63
  6. Step 6: Final answer
    x = 100,287.24

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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.