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Finding the Fourth Proportional to 401,308.96, 602,056.08 and 135,062.97

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Solution

The fourth proportional to 401,308.96, 602,056.08 and 135,062.97 is: 202,625.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,308.96 : 602,056.08 = 135,062.97 : x
  2. Step 2: Convert to fraction form
    401,308.96/602,056.08 = 135,062.97/x
  3. Step 3: Cross multiply
    401,308.96x = 602,056.08 × 135,062.97
  4. Step 4: Simplify right side
    401,308.96x = 81,315,478,585.76
  5. Step 5: Solve for x
    x = 81,315,478,585.76/401,308.96
  6. Step 6: Final answer
    x = 202,625.63

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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.