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Finding the Fourth Proportional to 365,052.81, 546,247.04 and 215,364.81

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Solution

The fourth proportional to 365,052.81, 546,247.04 and 215,364.81 is: 322,261.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,052.81 : 546,247.04 = 215,364.81 : x
  2. Step 2: Convert to fraction form
    365,052.81/546,247.04 = 215,364.81/x
  3. Step 3: Cross multiply
    365,052.81x = 546,247.04 × 215,364.81
  4. Step 4: Simplify right side
    365,052.81x = 117,642,388,905.84
  5. Step 5: Solve for x
    x = 117,642,388,905.84/365,052.81
  6. Step 6: Final answer
    x = 322,261.29

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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.