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Finding the Fourth Proportional to 118,032.75, 162,885.20 and 65,040.75

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Solution

The fourth proportional to 118,032.75, 162,885.20 and 65,040.75 is: 89,756.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,032.75 : 162,885.20 = 65,040.75 : x
  2. Step 2: Convert to fraction form
    118,032.75/162,885.20 = 65,040.75/x
  3. Step 3: Cross multiply
    118,032.75x = 162,885.20 × 65,040.75
  4. Step 4: Simplify right side
    118,032.75x = 10,594,175,246.70
  5. Step 5: Solve for x
    x = 10,594,175,246.70/118,032.75
  6. Step 6: Final answer
    x = 89,756.24

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1.5x scale

Why These Related Problems?

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