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Finding the Fourth Proportional to 122,993.80, 184,436.70 and 56,411.80

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Solution

The fourth proportional to 122,993.80, 184,436.70 and 56,411.80 is: 84,592.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,993.80 : 184,436.70 = 56,411.80 : x
  2. Step 2: Convert to fraction form
    122,993.80/184,436.70 = 56,411.80/x
  3. Step 3: Cross multiply
    122,993.80x = 184,436.70 × 56,411.80
  4. Step 4: Simplify right side
    122,993.80x = 10,404,406,233.06
  5. Step 5: Solve for x
    x = 10,404,406,233.06/122,993.80
  6. Step 6: Final answer
    x = 84,592.93

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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.