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Finding the Fourth Proportional to 483,142.10, 724,485.48 and 179,325.74

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Solution

The fourth proportional to 483,142.10, 724,485.48 and 179,325.74 is: 268,904.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,142.10 : 724,485.48 = 179,325.74 : x
  2. Step 2: Convert to fraction form
    483,142.10/724,485.48 = 179,325.74/x
  3. Step 3: Cross multiply
    483,142.10x = 724,485.48 × 179,325.74
  4. Step 4: Simplify right side
    483,142.10x = 129,918,891,197.83
  5. Step 5: Solve for x
    x = 129,918,891,197.83/483,142.10
  6. Step 6: Final answer
    x = 268,904.10

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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.