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Finding the Fourth Proportional to 172,353.96, 258,460.19 and 65,776.73

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Solution

The fourth proportional to 172,353.96, 258,460.19 and 65,776.73 is: 98,638.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,353.96 : 258,460.19 = 65,776.73 : x
  2. Step 2: Convert to fraction form
    172,353.96/258,460.19 = 65,776.73/x
  3. Step 3: Cross multiply
    172,353.96x = 258,460.19 × 65,776.73
  4. Step 4: Simplify right side
    172,353.96x = 17,000,664,512.19
  5. Step 5: Solve for x
    x = 17,000,664,512.19/172,353.96
  6. Step 6: Final answer
    x = 98,638.08

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1.5x scale

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.