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Finding the Fourth Proportional to 92,806.63, 128,073.08 and 50,365.19

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Solution

The fourth proportional to 92,806.63, 128,073.08 and 50,365.19 is: 69,503.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,806.63 : 128,073.08 = 50,365.19 : x
  2. Step 2: Convert to fraction form
    92,806.63/128,073.08 = 50,365.19/x
  3. Step 3: Cross multiply
    92,806.63x = 128,073.08 × 50,365.19
  4. Step 4: Simplify right side
    92,806.63x = 6,450,425,454.18
  5. Step 5: Solve for x
    x = 6,450,425,454.18/92,806.63
  6. Step 6: Final answer
    x = 69,503.93

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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.