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Finding the Fourth Proportional to 316,965.38, 475,525.52 and 92,322.20

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Solution

The fourth proportional to 316,965.38, 475,525.52 and 92,322.20 is: 138,505.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,965.38 : 475,525.52 = 92,322.20 : x
  2. Step 2: Convert to fraction form
    316,965.38/475,525.52 = 92,322.20/x
  3. Step 3: Cross multiply
    316,965.38x = 475,525.52 × 92,322.20
  4. Step 4: Simplify right side
    316,965.38x = 43,901,559,323.31
  5. Step 5: Solve for x
    x = 43,901,559,323.31/316,965.38
  6. Step 6: Final answer
    x = 138,505.85

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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.