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Finding the Fourth Proportional to 109,157.95, 150,627.26 and 61,410.27

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Solution

The fourth proportional to 109,157.95, 150,627.26 and 61,410.27 is: 84,740.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,157.95 : 150,627.26 = 61,410.27 : x
  2. Step 2: Convert to fraction form
    109,157.95/150,627.26 = 61,410.27/x
  3. Step 3: Cross multiply
    109,157.95x = 150,627.26 × 61,410.27
  4. Step 4: Simplify right side
    109,157.95x = 9,250,060,705.96
  5. Step 5: Solve for x
    x = 9,250,060,705.96/109,157.95
  6. Step 6: Final answer
    x = 84,740.15

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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.