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Finding the Fourth Proportional to 273,090.38, 376,710.37 and 170,938.51

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Solution

The fourth proportional to 273,090.38, 376,710.37 and 170,938.51 is: 235,798.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,090.38 : 376,710.37 = 170,938.51 : x
  2. Step 2: Convert to fraction form
    273,090.38/376,710.37 = 170,938.51/x
  3. Step 3: Cross multiply
    273,090.38x = 376,710.37 × 170,938.51
  4. Step 4: Simplify right side
    273,090.38x = 64,394,307,980.23
  5. Step 5: Solve for x
    x = 64,394,307,980.23/273,090.38
  6. Step 6: Final answer
    x = 235,798.53

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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.