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Finding the Fourth Proportional to 148,210.20, 221,659.20 and 124,590.60

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Solution

The fourth proportional to 148,210.20, 221,659.20 and 124,590.60 is: 186,334.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,210.20 : 221,659.20 = 124,590.60 : x
  2. Step 2: Convert to fraction form
    148,210.20/221,659.20 = 124,590.60/x
  3. Step 3: Cross multiply
    148,210.20x = 221,659.20 × 124,590.60
  4. Step 4: Simplify right side
    148,210.20x = 27,616,652,723.52
  5. Step 5: Solve for x
    x = 27,616,652,723.52/148,210.20
  6. Step 6: Final answer
    x = 186,334.36

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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.