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Finding the Fourth Proportional to 483,210.80, 724,812.60 and 146,250.80

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Solution

The fourth proportional to 483,210.80, 724,812.60 and 146,250.80 is: 219,375.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,210.80 : 724,812.60 = 146,250.80 : x
  2. Step 2: Convert to fraction form
    483,210.80/724,812.60 = 146,250.80/x
  3. Step 3: Cross multiply
    483,210.80x = 724,812.60 × 146,250.80
  4. Step 4: Simplify right side
    483,210.80x = 106,004,422,600.08
  5. Step 5: Solve for x
    x = 106,004,422,600.08/483,210.80
  6. Step 6: Final answer
    x = 219,375.11

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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.