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Finding the Fourth Proportional to 291,055.26, 401,705.28 and 168,529.80

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Solution

The fourth proportional to 291,055.26, 401,705.28 and 168,529.80 is: 232,599.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,055.26 : 401,705.28 = 168,529.80 : x
  2. Step 2: Convert to fraction form
    291,055.26/401,705.28 = 168,529.80/x
  3. Step 3: Cross multiply
    291,055.26x = 401,705.28 × 168,529.80
  4. Step 4: Simplify right side
    291,055.26x = 67,699,310,497.34
  5. Step 5: Solve for x
    x = 67,699,310,497.34/291,055.26
  6. Step 6: Final answer
    x = 232,599.51

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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.