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Finding the Fourth Proportional to 275,790.41, 380,595.90 and 153,294.26

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Solution

The fourth proportional to 275,790.41, 380,595.90 and 153,294.26 is: 211,548.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,790.41 : 380,595.90 = 153,294.26 : x
  2. Step 2: Convert to fraction form
    275,790.41/380,595.90 = 153,294.26/x
  3. Step 3: Cross multiply
    275,790.41x = 380,595.90 × 153,294.26
  4. Step 4: Simplify right side
    275,790.41x = 58,343,166,849.53
  5. Step 5: Solve for x
    x = 58,343,166,849.53/275,790.41
  6. Step 6: Final answer
    x = 211,548.93

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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.