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Finding the Third Proportional to 191,715.61 and 403,256.60

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Solution

The third proportional to 191,715.61 and 403,256.60 is: 848,214.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,715.61 : 403,256.60 = 403,256.60 : x
  2. Step 2: Convert to fraction form
    191,715.61/403,256.60 = 403,256.60/x
  3. Step 3: Cross multiply
    191,715.61x = 403,256.60 × 403,256.60
  4. Step 4: Simplify right side
    191,715.61x = 162,615,886,703.74
  5. Step 5: Solve for x
    x = 162,615,886,703.74/191,715.61
  6. Step 6: Final answer
    x = 848,214.12

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.