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Finding the Fourth Proportional to 401,485.10, 602,227.65 and 164,705.90

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Solution

The fourth proportional to 401,485.10, 602,227.65 and 164,705.90 is: 247,058.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,485.10 : 602,227.65 = 164,705.90 : x
  2. Step 2: Convert to fraction form
    401,485.10/602,227.65 = 164,705.90/x
  3. Step 3: Cross multiply
    401,485.10x = 602,227.65 × 164,705.90
  4. Step 4: Simplify right side
    401,485.10x = 99,190,447,098.14
  5. Step 5: Solve for x
    x = 99,190,447,098.14/401,485.10
  6. Step 6: Final answer
    x = 247,058.85

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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.