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Finding the Fourth Proportional to 333,774.77, 500,657.58 and 81,057.20

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Solution

The fourth proportional to 333,774.77, 500,657.58 and 81,057.20 is: 121,584.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,774.77 : 500,657.58 = 81,057.20 : x
  2. Step 2: Convert to fraction form
    333,774.77/500,657.58 = 81,057.20/x
  3. Step 3: Cross multiply
    333,774.77x = 500,657.58 × 81,057.20
  4. Step 4: Simplify right side
    333,774.77x = 40,581,899,090.29
  5. Step 5: Solve for x
    x = 40,581,899,090.29/333,774.77
  6. Step 6: Final answer
    x = 121,584.68

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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.