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Finding the Fourth Proportional to 363,775.94, 545,822.68 and 127,288.34

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Solution

The fourth proportional to 363,775.94, 545,822.68 and 127,288.34 is: 190,988.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,775.94 : 545,822.68 = 127,288.34 : x
  2. Step 2: Convert to fraction form
    363,775.94/545,822.68 = 127,288.34/x
  3. Step 3: Cross multiply
    363,775.94x = 545,822.68 × 127,288.34
  4. Step 4: Simplify right side
    363,775.94x = 69,476,862,871.55
  5. Step 5: Solve for x
    x = 69,476,862,871.55/363,775.94
  6. Step 6: Final answer
    x = 190,988.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.