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Finding the Fourth Proportional to 281,613.96, 422,541.90 and 186,877.26

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Solution

The fourth proportional to 281,613.96, 422,541.90 and 186,877.26 is: 280,396.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,613.96 : 422,541.90 = 186,877.26 : x
  2. Step 2: Convert to fraction form
    281,613.96/422,541.90 = 186,877.26/x
  3. Step 3: Cross multiply
    281,613.96x = 422,541.90 × 186,877.26
  4. Step 4: Simplify right side
    281,613.96x = 78,963,472,507.19
  5. Step 5: Solve for x
    x = 78,963,472,507.19/281,613.96
  6. Step 6: Final answer
    x = 280,396.16

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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.