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Finding the Fourth Proportional to 292,920.48, 404,205.12 and 170,435.52

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Solution

The fourth proportional to 292,920.48, 404,205.12 and 170,435.52 is: 235,186.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,920.48 : 404,205.12 = 170,435.52 : x
  2. Step 2: Convert to fraction form
    292,920.48/404,205.12 = 170,435.52/x
  3. Step 3: Cross multiply
    292,920.48x = 404,205.12 × 170,435.52
  4. Step 4: Simplify right side
    292,920.48x = 68,890,909,813.86
  5. Step 5: Solve for x
    x = 68,890,909,813.86/292,920.48
  6. Step 6: Final answer
    x = 235,186.39

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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.