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Finding the Fourth Proportional to 357,553.44, 536,330.16 and 91,314.54

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Solution

The fourth proportional to 357,553.44, 536,330.16 and 91,314.54 is: 136,971.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,553.44 : 536,330.16 = 91,314.54 : x
  2. Step 2: Convert to fraction form
    357,553.44/536,330.16 = 91,314.54/x
  3. Step 3: Cross multiply
    357,553.44x = 536,330.16 × 91,314.54
  4. Step 4: Simplify right side
    357,553.44x = 48,974,741,848.53
  5. Step 5: Solve for x
    x = 48,974,741,848.53/357,553.44
  6. Step 6: Final answer
    x = 136,971.81

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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.