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Finding the Fourth Proportional to 215,066.60, 322,599.90 and 162,578.60

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Solution

The fourth proportional to 215,066.60, 322,599.90 and 162,578.60 is: 243,867.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,066.60 : 322,599.90 = 162,578.60 : x
  2. Step 2: Convert to fraction form
    215,066.60/322,599.90 = 162,578.60/x
  3. Step 3: Cross multiply
    215,066.60x = 322,599.90 × 162,578.60
  4. Step 4: Simplify right side
    215,066.60x = 52,447,840,102.14
  5. Step 5: Solve for x
    x = 52,447,840,102.14/215,066.60
  6. Step 6: Final answer
    x = 243,867.90

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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.