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Finding the Fourth Proportional to 220,115.95, 330,157.77 and 70,316.01

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Solution

The fourth proportional to 220,115.95, 330,157.77 and 70,316.01 is: 105,468.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,115.95 : 330,157.77 = 70,316.01 : x
  2. Step 2: Convert to fraction form
    220,115.95/330,157.77 = 70,316.01/x
  3. Step 3: Cross multiply
    220,115.95x = 330,157.77 × 70,316.01
  4. Step 4: Simplify right side
    220,115.95x = 23,215,377,056.90
  5. Step 5: Solve for x
    x = 23,215,377,056.90/220,115.95
  6. Step 6: Final answer
    x = 105,468.86

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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.