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Finding the Fourth Proportional to 169,768, 252,858.72 and 160,886.08

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Solution

The fourth proportional to 169,768, 252,858.72 and 160,886.08 is: 239,629.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,768 : 252,858.72 = 160,886.08 : x
  2. Step 2: Convert to fraction form
    169,768/252,858.72 = 160,886.08/x
  3. Step 3: Cross multiply
    169,768x = 252,858.72 × 160,886.08
  4. Step 4: Simplify right side
    169,768x = 40,681,448,254.62
  5. Step 5: Solve for x
    x = 40,681,448,254.62/169,768
  6. Step 6: Final answer
    x = 239,629.66

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.