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Finding the Fourth Proportional to 307,533.48, 424,396.40 and 171,567.44

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Solution

The fourth proportional to 307,533.48, 424,396.40 and 171,567.44 is: 236,763.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,533.48 : 424,396.40 = 171,567.44 : x
  2. Step 2: Convert to fraction form
    307,533.48/424,396.40 = 171,567.44/x
  3. Step 3: Cross multiply
    307,533.48x = 424,396.40 × 171,567.44
  4. Step 4: Simplify right side
    307,533.48x = 72,812,603,893.22
  5. Step 5: Solve for x
    x = 72,812,603,893.22/307,533.48
  6. Step 6: Final answer
    x = 236,763.18

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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.