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Finding the Fourth Proportional to 333,726.40, 500,585.19 and 81,008.88

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Solution

The fourth proportional to 333,726.40, 500,585.19 and 81,008.88 is: 121,512.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,726.40 : 500,585.19 = 81,008.88 : x
  2. Step 2: Convert to fraction form
    333,726.40/500,585.19 = 81,008.88/x
  3. Step 3: Cross multiply
    333,726.40x = 500,585.19 × 81,008.88
  4. Step 4: Simplify right side
    333,726.40x = 40,551,845,586.49
  5. Step 5: Solve for x
    x = 40,551,845,586.49/333,726.40
  6. Step 6: Final answer
    x = 121,512.25

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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.