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Finding the Fourth Proportional to 364,123.27, 546,066.81 and 139,471.75

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Solution

The fourth proportional to 364,123.27, 546,066.81 and 139,471.75 is: 209,162.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,123.27 : 546,066.81 = 139,471.75 : x
  2. Step 2: Convert to fraction form
    364,123.27/546,066.81 = 139,471.75/x
  3. Step 3: Cross multiply
    364,123.27x = 546,066.81 × 139,471.75
  4. Step 4: Simplify right side
    364,123.27x = 76,160,893,607.62
  5. Step 5: Solve for x
    x = 76,160,893,607.62/364,123.27
  6. Step 6: Final answer
    x = 209,162.39

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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.