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Finding the Fourth Proportional to 424,970.76, 637,525.37 and 125,481.60

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Solution

The fourth proportional to 424,970.76, 637,525.37 and 125,481.60 is: 188,242.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,970.76 : 637,525.37 = 125,481.60 : x
  2. Step 2: Convert to fraction form
    424,970.76/637,525.37 = 125,481.60/x
  3. Step 3: Cross multiply
    424,970.76x = 637,525.37 × 125,481.60
  4. Step 4: Simplify right side
    424,970.76x = 79,997,702,840.78
  5. Step 5: Solve for x
    x = 79,997,702,840.78/424,970.76
  6. Step 6: Final answer
    x = 188,242.84

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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.