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Finding the Fourth Proportional to 401,379.10, 602,157.17 and 117,091.88

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Solution

The fourth proportional to 401,379.10, 602,157.17 and 117,091.88 is: 175,663.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,379.10 : 602,157.17 = 117,091.88 : x
  2. Step 2: Convert to fraction form
    401,379.10/602,157.17 = 117,091.88/x
  3. Step 3: Cross multiply
    401,379.10x = 602,157.17 × 117,091.88
  4. Step 4: Simplify right side
    401,379.10x = 70,507,712,372.72
  5. Step 5: Solve for x
    x = 70,507,712,372.72/401,379.10
  6. Step 6: Final answer
    x = 175,663.64

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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.