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Finding the Fourth Proportional to 228,735.95, 315,656.40 and 126,763.13

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Solution

The fourth proportional to 228,735.95, 315,656.40 and 126,763.13 is: 174,933.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,735.95 : 315,656.40 = 126,763.13 : x
  2. Step 2: Convert to fraction form
    228,735.95/315,656.40 = 126,763.13/x
  3. Step 3: Cross multiply
    228,735.95x = 315,656.40 × 126,763.13
  4. Step 4: Simplify right side
    228,735.95x = 40,013,591,690.25
  5. Step 5: Solve for x
    x = 40,013,591,690.25/228,735.95
  6. Step 6: Final answer
    x = 174,933.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.