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Finding the Fourth Proportional to 479,756.56, 719,638.52 and 164,216.20

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Solution

The fourth proportional to 479,756.56, 719,638.52 and 164,216.20 is: 246,325.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,756.56 : 719,638.52 = 164,216.20 : x
  2. Step 2: Convert to fraction form
    479,756.56/719,638.52 = 164,216.20/x
  3. Step 3: Cross multiply
    479,756.56x = 719,638.52 × 164,216.20
  4. Step 4: Simplify right side
    479,756.56x = 118,176,303,128.02
  5. Step 5: Solve for x
    x = 118,176,303,128.02/479,756.56
  6. Step 6: Final answer
    x = 246,325.56

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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.