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Finding the Fourth Proportional to 202,741.67, 279,771.53 and 112,090.52

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Solution

The fourth proportional to 202,741.67, 279,771.53 and 112,090.52 is: 154,678.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,741.67 : 279,771.53 = 112,090.52 : x
  2. Step 2: Convert to fraction form
    202,741.67/279,771.53 = 112,090.52/x
  3. Step 3: Cross multiply
    202,741.67x = 279,771.53 × 112,090.52
  4. Step 4: Simplify right side
    202,741.67x = 31,359,736,278.90
  5. Step 5: Solve for x
    x = 31,359,736,278.90/202,741.67
  6. Step 6: Final answer
    x = 154,678.30

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Why These Related Problems?

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