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Finding the Fourth Proportional to 169,879.75, 234,434.21 and 93,400.15

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Solution

The fourth proportional to 169,879.75, 234,434.21 and 93,400.15 is: 128,892.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,879.75 : 234,434.21 = 93,400.15 : x
  2. Step 2: Convert to fraction form
    169,879.75/234,434.21 = 93,400.15/x
  3. Step 3: Cross multiply
    169,879.75x = 234,434.21 × 93,400.15
  4. Step 4: Simplify right side
    169,879.75x = 21,896,190,379.13
  5. Step 5: Solve for x
    x = 21,896,190,379.13/169,879.75
  6. Step 6: Final answer
    x = 128,892.29

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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.