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Finding the Fourth Proportional to 373,708.96, 515,729.76 and 212,587.36

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Solution

The fourth proportional to 373,708.96, 515,729.76 and 212,587.36 is: 293,377.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,708.96 : 515,729.76 = 212,587.36 : x
  2. Step 2: Convert to fraction form
    373,708.96/515,729.76 = 212,587.36/x
  3. Step 3: Cross multiply
    373,708.96x = 515,729.76 × 212,587.36
  4. Step 4: Simplify right side
    373,708.96x = 109,637,628,151.83
  5. Step 5: Solve for x
    x = 109,637,628,151.83/373,708.96
  6. Step 6: Final answer
    x = 293,377.04

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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.