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Finding the Fourth Proportional to 547,810.60, 821,651.10 and 148,426.60

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Solution

The fourth proportional to 547,810.60, 821,651.10 and 148,426.60 is: 222,622.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,810.60 : 821,651.10 = 148,426.60 : x
  2. Step 2: Convert to fraction form
    547,810.60/821,651.10 = 148,426.60/x
  3. Step 3: Cross multiply
    547,810.60x = 821,651.10 × 148,426.60
  4. Step 4: Simplify right side
    547,810.60x = 121,954,879,159.26
  5. Step 5: Solve for x
    x = 121,954,879,159.26/547,810.60
  6. Step 6: Final answer
    x = 222,622.34

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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.