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Finding the Fourth Proportional to 238,349.62, 328,923.89 and 130,916.89

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Solution

The fourth proportional to 238,349.62, 328,923.89 and 130,916.89 is: 180,666.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,349.62 : 328,923.89 = 130,916.89 : x
  2. Step 2: Convert to fraction form
    238,349.62/328,923.89 = 130,916.89/x
  3. Step 3: Cross multiply
    238,349.62x = 328,923.89 × 130,916.89
  4. Step 4: Simplify right side
    238,349.62x = 43,061,692,725.50
  5. Step 5: Solve for x
    x = 43,061,692,725.50/238,349.62
  6. Step 6: Final answer
    x = 180,666.09

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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.