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Finding the Fourth Proportional to 461,744.64, 692,563.20 and 124,769.28

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Solution

The fourth proportional to 461,744.64, 692,563.20 and 124,769.28 is: 187,139.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,744.64 : 692,563.20 = 124,769.28 : x
  2. Step 2: Convert to fraction form
    461,744.64/692,563.20 = 124,769.28/x
  3. Step 3: Cross multiply
    461,744.64x = 692,563.20 × 124,769.28
  4. Step 4: Simplify right side
    461,744.64x = 86,410,611,818.50
  5. Step 5: Solve for x
    x = 86,410,611,818.50/461,744.64
  6. Step 6: Final answer
    x = 187,139.39

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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.