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Finding the Fourth Proportional to 333,868.60, 500,798.43 and 81,148.37

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Solution

The fourth proportional to 333,868.60, 500,798.43 and 81,148.37 is: 121,721.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,868.60 : 500,798.43 = 81,148.37 : x
  2. Step 2: Convert to fraction form
    333,868.60/500,798.43 = 81,148.37/x
  3. Step 3: Cross multiply
    333,868.60x = 500,798.43 × 81,148.37
  4. Step 4: Simplify right side
    333,868.60x = 40,638,973,789.07
  5. Step 5: Solve for x
    x = 40,638,973,789.07/333,868.60
  6. Step 6: Final answer
    x = 121,721.46

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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.