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Finding the Fourth Proportional to 172,247.50, 258,376.08 and 47,588.50

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Solution

The fourth proportional to 172,247.50, 258,376.08 and 47,588.50 is: 71,384.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,247.50 : 258,376.08 = 47,588.50 : x
  2. Step 2: Convert to fraction form
    172,247.50/258,376.08 = 47,588.50/x
  3. Step 3: Cross multiply
    172,247.50x = 258,376.08 × 47,588.50
  4. Step 4: Simplify right side
    172,247.50x = 12,295,730,083.08
  5. Step 5: Solve for x
    x = 12,295,730,083.08/172,247.50
  6. Step 6: Final answer
    x = 71,384.08

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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.