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Finding the Fourth Proportional to 99,196, 136,890.48 and 54,484

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Solution

The fourth proportional to 99,196, 136,890.48 and 54,484 is: 75,187.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,196 : 136,890.48 = 54,484 : x
  2. Step 2: Convert to fraction form
    99,196/136,890.48 = 54,484/x
  3. Step 3: Cross multiply
    99,196x = 136,890.48 × 54,484
  4. Step 4: Simplify right side
    99,196x = 7,458,340,912.32
  5. Step 5: Solve for x
    x = 7,458,340,912.32/99,196
  6. Step 6: Final answer
    x = 75,187.92

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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.