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Finding the Fourth Proportional to 172,364.10, 258,546.15 and 116,376.90

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Solution

The fourth proportional to 172,364.10, 258,546.15 and 116,376.90 is: 174,565.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,364.10 : 258,546.15 = 116,376.90 : x
  2. Step 2: Convert to fraction form
    172,364.10/258,546.15 = 116,376.90/x
  3. Step 3: Cross multiply
    172,364.10x = 258,546.15 × 116,376.90
  4. Step 4: Simplify right side
    172,364.10x = 30,088,799,443.94
  5. Step 5: Solve for x
    x = 30,088,799,443.94/172,364.10
  6. Step 6: Final answer
    x = 174,565.35

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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.