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Finding the Fourth Proportional to 238,041.90, 328,486.83 and 130,609.26

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Solution

The fourth proportional to 238,041.90, 328,486.83 and 130,609.26 is: 180,234.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,041.90 : 328,486.83 = 130,609.26 : x
  2. Step 2: Convert to fraction form
    238,041.90/328,486.83 = 130,609.26/x
  3. Step 3: Cross multiply
    238,041.90x = 328,486.83 × 130,609.26
  4. Step 4: Simplify right side
    238,041.90x = 42,903,421,786.05
  5. Step 5: Solve for x
    x = 42,903,421,786.05/238,041.90
  6. Step 6: Final answer
    x = 180,234.75

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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.