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Finding the Fourth Proportional to 292,426.88, 403,550.37 and 158,290.88

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Solution

The fourth proportional to 292,426.88, 403,550.37 and 158,290.88 is: 218,442.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,426.88 : 403,550.37 = 158,290.88 : x
  2. Step 2: Convert to fraction form
    292,426.88/403,550.37 = 158,290.88/x
  3. Step 3: Cross multiply
    292,426.88x = 403,550.37 × 158,290.88
  4. Step 4: Simplify right side
    292,426.88x = 63,878,341,173.87
  5. Step 5: Solve for x
    x = 63,878,341,173.87/292,426.88
  6. Step 6: Final answer
    x = 218,442.10

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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.