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Finding the Fourth Proportional to 100,672.01, 151,008.93 and 30,551.32

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Solution

The fourth proportional to 100,672.01, 151,008.93 and 30,551.32 is: 45,827.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,672.01 : 151,008.93 = 30,551.32 : x
  2. Step 2: Convert to fraction form
    100,672.01/151,008.93 = 30,551.32/x
  3. Step 3: Cross multiply
    100,672.01x = 151,008.93 × 30,551.32
  4. Step 4: Simplify right side
    100,672.01x = 4,613,522,143.29
  5. Step 5: Solve for x
    x = 4,613,522,143.29/100,672.01
  6. Step 6: Final answer
    x = 45,827.26

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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.