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Finding the Fourth Proportional to 483,402.05, 724,847.90 and 163,443.95

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Solution

The fourth proportional to 483,402.05, 724,847.90 and 163,443.95 is: 245,079.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,402.05 : 724,847.90 = 163,443.95 : x
  2. Step 2: Convert to fraction form
    483,402.05/724,847.90 = 163,443.95/x
  3. Step 3: Cross multiply
    483,402.05x = 724,847.90 × 163,443.95
  4. Step 4: Simplify right side
    483,402.05x = 118,471,999,483.75
  5. Step 5: Solve for x
    x = 118,471,999,483.75/483,402.05
  6. Step 6: Final answer
    x = 245,079.64

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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.