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Finding the Fourth Proportional to 169,420.78, 233,828.67 and 93,993.58

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Solution

The fourth proportional to 169,420.78, 233,828.67 and 93,993.58 is: 129,726.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,420.78 : 233,828.67 = 93,993.58 : x
  2. Step 2: Convert to fraction form
    169,420.78/233,828.67 = 93,993.58/x
  3. Step 3: Cross multiply
    169,420.78x = 233,828.67 × 93,993.58
  4. Step 4: Simplify right side
    169,420.78x = 21,978,393,799.94
  5. Step 5: Solve for x
    x = 21,978,393,799.94/169,420.78
  6. Step 6: Final answer
    x = 129,726.67

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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.