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Finding the Fourth Proportional to 292,216.50, 403,258.77 and 158,080.50

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Solution

The fourth proportional to 292,216.50, 403,258.77 and 158,080.50 is: 218,151.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,216.50 : 403,258.77 = 158,080.50 : x
  2. Step 2: Convert to fraction form
    292,216.50/403,258.77 = 158,080.50/x
  3. Step 3: Cross multiply
    292,216.50x = 403,258.77 × 158,080.50
  4. Step 4: Simplify right side
    292,216.50x = 63,747,347,990.99
  5. Step 5: Solve for x
    x = 63,747,347,990.99/292,216.50
  6. Step 6: Final answer
    x = 218,151.09

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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.