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Finding the Fourth Proportional to 170,638.62, 235,492.32 and 98,064.86

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Solution

The fourth proportional to 170,638.62, 235,492.32 and 98,064.86 is: 135,335.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,638.62 : 235,492.32 = 98,064.86 : x
  2. Step 2: Convert to fraction form
    170,638.62/235,492.32 = 98,064.86/x
  3. Step 3: Cross multiply
    170,638.62x = 235,492.32 × 98,064.86
  4. Step 4: Simplify right side
    170,638.62x = 23,093,521,391.88
  5. Step 5: Solve for x
    x = 23,093,521,391.88/170,638.62
  6. Step 6: Final answer
    x = 135,335.84

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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.