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Finding the Fourth Proportional to 72,146, 108,123.96 and 30,541.52

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Solution

The fourth proportional to 72,146, 108,123.96 and 30,541.52 is: 45,772.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,146 : 108,123.96 = 30,541.52 : x
  2. Step 2: Convert to fraction form
    72,146/108,123.96 = 30,541.52/x
  3. Step 3: Cross multiply
    72,146x = 108,123.96 × 30,541.52
  4. Step 4: Simplify right side
    72,146x = 3,302,270,086.82
  5. Step 5: Solve for x
    x = 3,302,270,086.82/72,146
  6. Step 6: Final answer
    x = 45,772.05

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.