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Finding the Fourth Proportional to 238,011.76, 328,186.92 and 151,855.48

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Solution

The fourth proportional to 238,011.76, 328,186.92 and 151,855.48 is: 209,388.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,011.76 : 328,186.92 = 151,855.48 : x
  2. Step 2: Convert to fraction form
    238,011.76/328,186.92 = 151,855.48/x
  3. Step 3: Cross multiply
    238,011.76x = 328,186.92 × 151,855.48
  4. Step 4: Simplify right side
    238,011.76x = 49,836,982,266.32
  5. Step 5: Solve for x
    x = 49,836,982,266.32/238,011.76
  6. Step 6: Final answer
    x = 209,388.74

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1.5x scale

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.