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Finding the Fourth Proportional to 292,083.84, 438,203.39 and 92,407.77

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Solution

The fourth proportional to 292,083.84, 438,203.39 and 92,407.77 is: 138,636.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,083.84 : 438,203.39 = 92,407.77 : x
  2. Step 2: Convert to fraction form
    292,083.84/438,203.39 = 92,407.77/x
  3. Step 3: Cross multiply
    292,083.84x = 438,203.39 × 92,407.77
  4. Step 4: Simplify right side
    292,083.84x = 40,493,397,614.30
  5. Step 5: Solve for x
    x = 40,493,397,614.30/292,083.84
  6. Step 6: Final answer
    x = 138,636.21

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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.