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Finding the Fourth Proportional to 99,153, 136,831.14 and 54,443.88

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Solution

The fourth proportional to 99,153, 136,831.14 and 54,443.88 is: 75,132.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,153 : 136,831.14 = 54,443.88 : x
  2. Step 2: Convert to fraction form
    99,153/136,831.14 = 54,443.88/x
  3. Step 3: Cross multiply
    99,153x = 136,831.14 × 54,443.88
  4. Step 4: Simplify right side
    99,153x = 7,449,618,166.42
  5. Step 5: Solve for x
    x = 7,449,618,166.42/99,153
  6. Step 6: Final answer
    x = 75,132.55

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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.