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Finding the Fourth Proportional to 373,429.17, 515,316.65 and 203,653.17

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Solution

The fourth proportional to 373,429.17, 515,316.65 and 203,653.17 is: 281,032.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,429.17 : 515,316.65 = 203,653.17 : x
  2. Step 2: Convert to fraction form
    373,429.17/515,316.65 = 203,653.17/x
  3. Step 3: Cross multiply
    373,429.17x = 515,316.65 × 203,653.17
  4. Step 4: Simplify right side
    373,429.17x = 104,945,868,308.02
  5. Step 5: Solve for x
    x = 104,945,868,308.02/373,429.17
  6. Step 6: Final answer
    x = 281,032.86

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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.