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Finding the Fourth Proportional to 220,113.94, 330,154.77 and 70,314.01

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Solution

The fourth proportional to 220,113.94, 330,154.77 and 70,314.01 is: 105,465.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,113.94 : 330,154.77 = 70,314.01 : x
  2. Step 2: Convert to fraction form
    220,113.94/330,154.77 = 70,314.01/x
  3. Step 3: Cross multiply
    220,113.94x = 330,154.77 × 70,314.01
  4. Step 4: Simplify right side
    220,113.94x = 23,214,505,619.93
  5. Step 5: Solve for x
    x = 23,214,505,619.93/220,113.94
  6. Step 6: Final answer
    x = 105,465.86

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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.