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Finding the Fourth Proportional to 360,074.88, 540,098.40 and 90,202.56

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Solution

The fourth proportional to 360,074.88, 540,098.40 and 90,202.56 is: 135,300.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,074.88 : 540,098.40 = 90,202.56 : x
  2. Step 2: Convert to fraction form
    360,074.88/540,098.40 = 90,202.56/x
  3. Step 3: Cross multiply
    360,074.88x = 540,098.40 × 90,202.56
  4. Step 4: Simplify right side
    360,074.88x = 48,718,258,331.90
  5. Step 5: Solve for x
    x = 48,718,258,331.90/360,074.88
  6. Step 6: Final answer
    x = 135,300.35

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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.