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Finding the Fourth Proportional to 258,528.56, 387,583.65 and 116,269.65

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Solution

The fourth proportional to 258,528.56, 387,583.65 and 116,269.65 is: 174,310.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,528.56 : 387,583.65 = 116,269.65 : x
  2. Step 2: Convert to fraction form
    258,528.56/387,583.65 = 116,269.65/x
  3. Step 3: Cross multiply
    258,528.56x = 387,583.65 × 116,269.65
  4. Step 4: Simplify right side
    258,528.56x = 45,064,215,331.22
  5. Step 5: Solve for x
    x = 45,064,215,331.22/258,528.56
  6. Step 6: Final answer
    x = 174,310.39

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1.5x scale

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.