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Finding the Fourth Proportional to 292,615.86, 403,842.78 and 165,299.70

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Solution

The fourth proportional to 292,615.86, 403,842.78 and 165,299.70 is: 228,132.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,615.86 : 403,842.78 = 165,299.70 : x
  2. Step 2: Convert to fraction form
    292,615.86/403,842.78 = 165,299.70/x
  3. Step 3: Cross multiply
    292,615.86x = 403,842.78 × 165,299.70
  4. Step 4: Simplify right side
    292,615.86x = 66,755,090,381.17
  5. Step 5: Solve for x
    x = 66,755,090,381.17/292,615.86
  6. Step 6: Final answer
    x = 228,132.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.