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Finding the Fourth Proportional to 66,573.42, 99,862.17 and 29,114.20

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Solution

The fourth proportional to 66,573.42, 99,862.17 and 29,114.20 is: 43,672.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,573.42 : 99,862.17 = 29,114.20 : x
  2. Step 2: Convert to fraction form
    66,573.42/99,862.17 = 29,114.20/x
  3. Step 3: Cross multiply
    66,573.42x = 99,862.17 × 29,114.20
  4. Step 4: Simplify right side
    66,573.42x = 2,907,407,189.81
  5. Step 5: Solve for x
    x = 2,907,407,189.81/66,573.42
  6. Step 6: Final answer
    x = 43,672.19

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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.