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Finding the Fourth Proportional to 238,170.52, 328,657.26 and 130,723.48

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Solution

The fourth proportional to 238,170.52, 328,657.26 and 130,723.48 is: 180,388.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,170.52 : 328,657.26 = 130,723.48 : x
  2. Step 2: Convert to fraction form
    238,170.52/328,657.26 = 130,723.48/x
  3. Step 3: Cross multiply
    238,170.52x = 328,657.26 × 130,723.48
  4. Step 4: Simplify right side
    238,170.52x = 42,963,220,754.46
  5. Step 5: Solve for x
    x = 42,963,220,754.46/238,170.52
  6. Step 6: Final answer
    x = 180,388.49

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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.