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Finding the Fourth Proportional to 214,482.54, 321,726.21 and 64,724.25

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Solution

The fourth proportional to 214,482.54, 321,726.21 and 64,724.25 is: 97,087.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,482.54 : 321,726.21 = 64,724.25 : x
  2. Step 2: Convert to fraction form
    214,482.54/321,726.21 = 64,724.25/x
  3. Step 3: Cross multiply
    214,482.54x = 321,726.21 × 64,724.25
  4. Step 4: Simplify right side
    214,482.54x = 20,823,487,647.59
  5. Step 5: Solve for x
    x = 20,823,487,647.59/214,482.54
  6. Step 6: Final answer
    x = 97,087.10

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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.