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Finding the Fourth Proportional to 463,453.60, 695,180.40 and 147,920.80

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Solution

The fourth proportional to 463,453.60, 695,180.40 and 147,920.80 is: 221,881.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,453.60 : 695,180.40 = 147,920.80 : x
  2. Step 2: Convert to fraction form
    463,453.60/695,180.40 = 147,920.80/x
  3. Step 3: Cross multiply
    463,453.60x = 695,180.40 × 147,920.80
  4. Step 4: Simplify right side
    463,453.60x = 102,831,640,912.32
  5. Step 5: Solve for x
    x = 102,831,640,912.32/463,453.60
  6. Step 6: Final answer
    x = 221,881.20

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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.