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Finding the Fourth Proportional to 292,266.60, 403,368.57 and 171,447

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Solution

The fourth proportional to 292,266.60, 403,368.57 and 171,447 is: 236,620.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,266.60 : 403,368.57 = 171,447 : x
  2. Step 2: Convert to fraction form
    292,266.60/403,368.57 = 171,447/x
  3. Step 3: Cross multiply
    292,266.60x = 403,368.57 × 171,447
  4. Step 4: Simplify right side
    292,266.60x = 69,156,331,220.79
  5. Step 5: Solve for x
    x = 69,156,331,220.79/292,266.60
  6. Step 6: Final answer
    x = 236,620.71

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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.