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Finding the Fourth Proportional to 240,813.13, 361,237.01 and 83,039.31

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Solution

The fourth proportional to 240,813.13, 361,237.01 and 83,039.31 is: 124,564.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,813.13 : 361,237.01 = 83,039.31 : x
  2. Step 2: Convert to fraction form
    240,813.13/361,237.01 = 83,039.31/x
  3. Step 3: Cross multiply
    240,813.13x = 361,237.01 × 83,039.31
  4. Step 4: Simplify right side
    240,813.13x = 29,996,869,835.48
  5. Step 5: Solve for x
    x = 29,996,869,835.48/240,813.13
  6. Step 6: Final answer
    x = 124,564.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.