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Finding the Fourth Proportional to 361,993.60, 542,987.70 and 109,273.60

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Solution

The fourth proportional to 361,993.60, 542,987.70 and 109,273.60 is: 163,909.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,993.60 : 542,987.70 = 109,273.60 : x
  2. Step 2: Convert to fraction form
    361,993.60/542,987.70 = 109,273.60/x
  3. Step 3: Cross multiply
    361,993.60x = 542,987.70 × 109,273.60
  4. Step 4: Simplify right side
    361,993.60x = 59,334,220,734.72
  5. Step 5: Solve for x
    x = 59,334,220,734.72/361,993.60
  6. Step 6: Final answer
    x = 163,909.58

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1.5x scale

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.