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Finding the Fourth Proportional to 283,167.50, 390,773.90 and 155,846.03

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Solution

The fourth proportional to 283,167.50, 390,773.90 and 155,846.03 is: 215,069.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,167.50 : 390,773.90 = 155,846.03 : x
  2. Step 2: Convert to fraction form
    283,167.50/390,773.90 = 155,846.03/x
  3. Step 3: Cross multiply
    283,167.50x = 390,773.90 × 155,846.03
  4. Step 4: Simplify right side
    283,167.50x = 60,900,559,378.36
  5. Step 5: Solve for x
    x = 60,900,559,378.36/283,167.50
  6. Step 6: Final answer
    x = 215,069.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.