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Finding the Fourth Proportional to 387,898.32, 581,841.63 and 174,515.54

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Solution

The fourth proportional to 387,898.32, 581,841.63 and 174,515.54 is: 261,770.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,898.32 : 581,841.63 = 174,515.54 : x
  2. Step 2: Convert to fraction form
    387,898.32/581,841.63 = 174,515.54/x
  3. Step 3: Cross multiply
    387,898.32x = 581,841.63 × 174,515.54
  4. Step 4: Simplify right side
    387,898.32x = 101,540,405,381.35
  5. Step 5: Solve for x
    x = 101,540,405,381.35/387,898.32
  6. Step 6: Final answer
    x = 261,770.68

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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.