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Finding the Fourth Proportional to 373,264.42, 515,168.76 and 258,709.36

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Solution

The fourth proportional to 373,264.42, 515,168.76 and 258,709.36 is: 357,063.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,264.42 : 515,168.76 = 258,709.36 : x
  2. Step 2: Convert to fraction form
    373,264.42/515,168.76 = 258,709.36/x
  3. Step 3: Cross multiply
    373,264.42x = 515,168.76 × 258,709.36
  4. Step 4: Simplify right side
    373,264.42x = 133,278,980,191.59
  5. Step 5: Solve for x
    x = 133,278,980,191.59/373,264.42
  6. Step 6: Final answer
    x = 357,063.18

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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.