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Finding the Fourth Proportional to 169,886.45, 255,006.72 and 166,074.32

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Solution

The fourth proportional to 169,886.45, 255,006.72 and 166,074.32 is: 249,284.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,886.45 : 255,006.72 = 166,074.32 : x
  2. Step 2: Convert to fraction form
    169,886.45/255,006.72 = 166,074.32/x
  3. Step 3: Cross multiply
    169,886.45x = 255,006.72 × 166,074.32
  4. Step 4: Simplify right side
    169,886.45x = 42,350,068,256.95
  5. Step 5: Solve for x
    x = 42,350,068,256.95/169,886.45
  6. Step 6: Final answer
    x = 249,284.55

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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.