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Finding the Fourth Proportional to 169,209.12, 233,522.72 and 93,764.64

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Solution

The fourth proportional to 169,209.12, 233,522.72 and 93,764.64 is: 129,403.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,209.12 : 233,522.72 = 93,764.64 : x
  2. Step 2: Convert to fraction form
    169,209.12/233,522.72 = 93,764.64/x
  3. Step 3: Cross multiply
    169,209.12x = 233,522.72 × 93,764.64
  4. Step 4: Simplify right side
    169,209.12x = 21,896,173,772.62
  5. Step 5: Solve for x
    x = 21,896,173,772.62/169,209.12
  6. Step 6: Final answer
    x = 129,403.04

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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.