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Finding the Fourth Proportional to 99,435.39, 137,220.84 and 54,723.39

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Solution

The fourth proportional to 99,435.39, 137,220.84 and 54,723.39 is: 75,518.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,435.39 : 137,220.84 = 54,723.39 : x
  2. Step 2: Convert to fraction form
    99,435.39/137,220.84 = 54,723.39/x
  3. Step 3: Cross multiply
    99,435.39x = 137,220.84 × 54,723.39
  4. Step 4: Simplify right side
    99,435.39x = 7,509,189,543.45
  5. Step 5: Solve for x
    x = 7,509,189,543.45/99,435.39
  6. Step 6: Final answer
    x = 75,518.28

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