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Finding the Fourth Proportional to 238,079.26, 328,553.42 and 130,659.30

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Solution

The fourth proportional to 238,079.26, 328,553.42 and 130,659.30 is: 180,312.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,079.26 : 328,553.42 = 130,659.30 : x
  2. Step 2: Convert to fraction form
    238,079.26/328,553.42 = 130,659.30/x
  3. Step 3: Cross multiply
    238,079.26x = 328,553.42 × 130,659.30
  4. Step 4: Simplify right side
    238,079.26x = 42,928,559,869.81
  5. Step 5: Solve for x
    x = 42,928,559,869.81/238,079.26
  6. Step 6: Final answer
    x = 180,312.05

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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.