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Finding the Third Proportional to 142,592.25 and 199,365

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Solution

The third proportional to 142,592.25 and 199,365 is: 278,741.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,592.25 : 199,365 = 199,365 : x
  2. Step 2: Convert to fraction form
    142,592.25/199,365 = 199,365/x
  3. Step 3: Cross multiply
    142,592.25x = 199,365 × 199,365
  4. Step 4: Simplify right side
    142,592.25x = 39,746,403,225
  5. Step 5: Solve for x
    x = 39,746,403,225/142,592.25
  6. Step 6: Final answer
    x = 278,741.68

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.