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Finding the Fourth Proportional to 240,595.29, 332,033.31 and 138,636.72

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Solution

The fourth proportional to 240,595.29, 332,033.31 and 138,636.72 is: 191,325.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,595.29 : 332,033.31 = 138,636.72 : x
  2. Step 2: Convert to fraction form
    240,595.29/332,033.31 = 138,636.72/x
  3. Step 3: Cross multiply
    240,595.29x = 332,033.31 × 138,636.72
  4. Step 4: Simplify right side
    240,595.29x = 46,032,009,029.14
  5. Step 5: Solve for x
    x = 46,032,009,029.14/240,595.29
  6. Step 6: Final answer
    x = 191,325.48

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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.