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Finding the Fourth Proportional to 252,116.01, 347,918.22 and 138,938.76

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Solution

The fourth proportional to 252,116.01, 347,918.22 and 138,938.76 is: 191,734.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,116.01 : 347,918.22 = 138,938.76 : x
  2. Step 2: Convert to fraction form
    252,116.01/347,918.22 = 138,938.76/x
  3. Step 3: Cross multiply
    252,116.01x = 347,918.22 × 138,938.76
  4. Step 4: Simplify right side
    252,116.01x = 48,339,326,068.21
  5. Step 5: Solve for x
    x = 48,339,326,068.21/252,116.01
  6. Step 6: Final answer
    x = 191,734.46

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.