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Finding the Fourth Proportional to 104,806.71, 144,633.28 and 57,060.06

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Solution

The fourth proportional to 104,806.71, 144,633.28 and 57,060.06 is: 78,742.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,806.71 : 144,633.28 = 57,060.06 : x
  2. Step 2: Convert to fraction form
    104,806.71/144,633.28 = 57,060.06/x
  3. Step 3: Cross multiply
    104,806.71x = 144,633.28 × 57,060.06
  4. Step 4: Simplify right side
    104,806.71x = 8,252,784,139.03
  5. Step 5: Solve for x
    x = 8,252,784,139.03/104,806.71
  6. Step 6: Final answer
    x = 78,742.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.