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Finding the Fourth Proportional to 172,999.66, 238,738.76 and 93,511.66

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Solution

The fourth proportional to 172,999.66, 238,738.76 and 93,511.66 is: 129,045.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,999.66 : 238,738.76 = 93,511.66 : x
  2. Step 2: Convert to fraction form
    172,999.66/238,738.76 = 93,511.66/x
  3. Step 3: Cross multiply
    172,999.66x = 238,738.76 × 93,511.66
  4. Step 4: Simplify right side
    172,999.66x = 22,324,856,326.47
  5. Step 5: Solve for x
    x = 22,324,856,326.47/172,999.66
  6. Step 6: Final answer
    x = 129,045.67

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1.5x scale

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.