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Finding the Fourth Proportional to 316,907.32, 475,462.60 and 92,281.24

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Solution

The fourth proportional to 316,907.32, 475,462.60 and 92,281.24 is: 138,451.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,907.32 : 475,462.60 = 92,281.24 : x
  2. Step 2: Convert to fraction form
    316,907.32/475,462.60 = 92,281.24/x
  3. Step 3: Cross multiply
    316,907.32x = 475,462.60 × 92,281.24
  4. Step 4: Simplify right side
    316,907.32x = 43,876,278,301.62
  5. Step 5: Solve for x
    x = 43,876,278,301.62/316,907.32
  6. Step 6: Final answer
    x = 138,451.45

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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.