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Finding the Fourth Proportional to 238,036.70, 328,496.69 and 130,606.70

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Solution

The fourth proportional to 238,036.70, 328,496.69 and 130,606.70 is: 180,240.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,036.70 : 328,496.69 = 130,606.70 : x
  2. Step 2: Convert to fraction form
    238,036.70/328,496.69 = 130,606.70/x
  3. Step 3: Cross multiply
    238,036.70x = 328,496.69 × 130,606.70
  4. Step 4: Simplify right side
    238,036.70x = 42,903,869,362.88
  5. Step 5: Solve for x
    x = 42,903,869,362.88/238,036.70
  6. Step 6: Final answer
    x = 180,240.57

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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.