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Finding the Fourth Proportional to 115,702.40, 173,683.20 and 89,523.20

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Solution

The fourth proportional to 115,702.40, 173,683.20 and 89,523.20 is: 134,385.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,702.40 : 173,683.20 = 89,523.20 : x
  2. Step 2: Convert to fraction form
    115,702.40/173,683.20 = 89,523.20/x
  3. Step 3: Cross multiply
    115,702.40x = 173,683.20 × 89,523.20
  4. Step 4: Simplify right side
    115,702.40x = 15,548,675,850.24
  5. Step 5: Solve for x
    x = 15,548,675,850.24/115,702.40
  6. Step 6: Final answer
    x = 134,385.08

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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.