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Finding the Fourth Proportional to 401,308.95, 602,056.07 and 135,062.97

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Solution

The fourth proportional to 401,308.95, 602,056.07 and 135,062.97 is: 202,625.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,308.95 : 602,056.07 = 135,062.97 : x
  2. Step 2: Convert to fraction form
    401,308.95/602,056.07 = 135,062.97/x
  3. Step 3: Cross multiply
    401,308.95x = 602,056.07 × 135,062.97
  4. Step 4: Simplify right side
    401,308.95x = 81,315,480,920.73
  5. Step 5: Solve for x
    x = 81,315,480,920.73/401,308.95
  6. Step 6: Final answer
    x = 202,625.64

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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.