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Finding the Fourth Proportional to 357,661.20, 536,491.80 and 191,773.20

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Solution

The fourth proportional to 357,661.20, 536,491.80 and 191,773.20 is: 287,659.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,661.20 : 536,491.80 = 191,773.20 : x
  2. Step 2: Convert to fraction form
    357,661.20/536,491.80 = 191,773.20/x
  3. Step 3: Cross multiply
    357,661.20x = 536,491.80 × 191,773.20
  4. Step 4: Simplify right side
    357,661.20x = 102,884,749,259.76
  5. Step 5: Solve for x
    x = 102,884,749,259.76/357,661.20
  6. Step 6: Final answer
    x = 287,659.80

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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.