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Finding the Fourth Proportional to 116,701.41, 175,062.98 and 90,435.54

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Solution

The fourth proportional to 116,701.41, 175,062.98 and 90,435.54 is: 135,661.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,701.41 : 175,062.98 = 90,435.54 : x
  2. Step 2: Convert to fraction form
    116,701.41/175,062.98 = 90,435.54/x
  3. Step 3: Cross multiply
    116,701.41x = 175,062.98 × 90,435.54
  4. Step 4: Simplify right side
    116,701.41x = 15,831,914,678.13
  5. Step 5: Solve for x
    x = 15,831,914,678.13/116,701.41
  6. Step 6: Final answer
    x = 135,661.73

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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.