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Finding the Fourth Proportional to 483,887.57, 725,784.45 and 146,931.18

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Solution

The fourth proportional to 483,887.57, 725,784.45 and 146,931.18 is: 220,382.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,887.57 : 725,784.45 = 146,931.18 : x
  2. Step 2: Convert to fraction form
    483,887.57/725,784.45 = 146,931.18/x
  3. Step 3: Cross multiply
    483,887.57x = 725,784.45 × 146,931.18
  4. Step 4: Simplify right side
    483,887.57x = 106,640,361,300.57
  5. Step 5: Solve for x
    x = 106,640,361,300.57/483,887.57
  6. Step 6: Final answer
    x = 220,382.52

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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.