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Finding the Fourth Proportional to 238,115.96, 328,620.18 and 130,704.18

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Solution

The fourth proportional to 238,115.96, 328,620.18 and 130,704.18 is: 180,382.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,115.96 : 328,620.18 = 130,704.18 : x
  2. Step 2: Convert to fraction form
    238,115.96/328,620.18 = 130,704.18/x
  3. Step 3: Cross multiply
    238,115.96x = 328,620.18 × 130,704.18
  4. Step 4: Simplify right side
    238,115.96x = 42,952,031,158.35
  5. Step 5: Solve for x
    x = 42,952,031,158.35/238,115.96
  6. Step 6: Final answer
    x = 180,382.84

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1.5x scale

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.