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Finding the Fourth Proportional to 483,497.70, 724,991.40 and 163,539.60

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Solution

The fourth proportional to 483,497.70, 724,991.40 and 163,539.60 is: 245,223.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,497.70 : 724,991.40 = 163,539.60 : x
  2. Step 2: Convert to fraction form
    483,497.70/724,991.40 = 163,539.60/x
  3. Step 3: Cross multiply
    483,497.70x = 724,991.40 × 163,539.60
  4. Step 4: Simplify right side
    483,497.70x = 118,564,803,559.44
  5. Step 5: Solve for x
    x = 118,564,803,559.44/483,497.70
  6. Step 6: Final answer
    x = 245,223.10

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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.