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Finding the Fourth Proportional to 238,608, 357,914.16 and 72,396

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Solution

The fourth proportional to 238,608, 357,914.16 and 72,396 is: 108,594.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,608 : 357,914.16 = 72,396 : x
  2. Step 2: Convert to fraction form
    238,608/357,914.16 = 72,396/x
  3. Step 3: Cross multiply
    238,608x = 357,914.16 × 72,396
  4. Step 4: Simplify right side
    238,608x = 25,911,553,527.36
  5. Step 5: Solve for x
    x = 25,911,553,527.36/238,608
  6. Step 6: Final answer
    x = 108,594.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.