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Finding the Fourth Proportional to 172,342.68, 237,855.06 and 96,905.76

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Solution

The fourth proportional to 172,342.68, 237,855.06 and 96,905.76 is: 133,742.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,342.68 : 237,855.06 = 96,905.76 : x
  2. Step 2: Convert to fraction form
    172,342.68/237,855.06 = 96,905.76/x
  3. Step 3: Cross multiply
    172,342.68x = 237,855.06 × 96,905.76
  4. Step 4: Simplify right side
    172,342.68x = 23,049,525,359.15
  5. Step 5: Solve for x
    x = 23,049,525,359.15/172,342.68
  6. Step 6: Final answer
    x = 133,742.41

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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.