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Finding the Fourth Proportional to 401,455.90, 601,673.55 and 164,530.90

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Solution

The fourth proportional to 401,455.90, 601,673.55 and 164,530.90 is: 246,587.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,455.90 : 601,673.55 = 164,530.90 : x
  2. Step 2: Convert to fraction form
    401,455.90/601,673.55 = 164,530.90/x
  3. Step 3: Cross multiply
    401,455.90x = 601,673.55 × 164,530.90
  4. Step 4: Simplify right side
    401,455.90x = 98,993,890,687.70
  5. Step 5: Solve for x
    x = 98,993,890,687.70/401,455.90
  6. Step 6: Final answer
    x = 246,587.21

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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.