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Finding the Fourth Proportional to 237,545.88, 327,809.28 and 128,649.30

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Solution

The fourth proportional to 237,545.88, 327,809.28 and 128,649.30 is: 177,533.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,545.88 : 327,809.28 = 128,649.30 : x
  2. Step 2: Convert to fraction form
    237,545.88/327,809.28 = 128,649.30/x
  3. Step 3: Cross multiply
    237,545.88x = 327,809.28 × 128,649.30
  4. Step 4: Simplify right side
    237,545.88x = 42,172,434,405.50
  5. Step 5: Solve for x
    x = 42,172,434,405.50/237,545.88
  6. Step 6: Final answer
    x = 177,533.85

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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.