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Finding the Fourth Proportional to 220,655.40, 330,983.10 and 220,655.40

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Solution

The fourth proportional to 220,655.40, 330,983.10 and 220,655.40 is: 330,983.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,655.40 : 330,983.10 = 220,655.40 : x
  2. Step 2: Convert to fraction form
    220,655.40/330,983.10 = 220,655.40/x
  3. Step 3: Cross multiply
    220,655.40x = 330,983.10 × 220,655.40
  4. Step 4: Simplify right side
    220,655.40x = 73,033,208,323.74
  5. Step 5: Solve for x
    x = 73,033,208,323.74/220,655.40
  6. Step 6: Final answer
    x = 330,983.10

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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.