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Finding the Fourth Proportional to 407,483.96, 611,087.51 and 141,182.31

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Solution

The fourth proportional to 407,483.96, 611,087.51 and 141,182.31 is: 211,725.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,483.96 : 611,087.51 = 141,182.31 : x
  2. Step 2: Convert to fraction form
    407,483.96/611,087.51 = 141,182.31/x
  3. Step 3: Cross multiply
    407,483.96x = 611,087.51 × 141,182.31
  4. Step 4: Simplify right side
    407,483.96x = 86,274,748,124.33
  5. Step 5: Solve for x
    x = 86,274,748,124.33/407,483.96
  6. Step 6: Final answer
    x = 211,725.51

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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.