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Finding the Fourth Proportional to 316,695.42, 475,074.18 and 92,057.58

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Solution

The fourth proportional to 316,695.42, 475,074.18 and 92,057.58 is: 138,095.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,695.42 : 475,074.18 = 92,057.58 : x
  2. Step 2: Convert to fraction form
    316,695.42/475,074.18 = 92,057.58/x
  3. Step 3: Cross multiply
    316,695.42x = 475,074.18 × 92,057.58
  4. Step 4: Simplify right side
    316,695.42x = 43,734,179,331.28
  5. Step 5: Solve for x
    x = 43,734,179,331.28/316,695.42
  6. Step 6: Final answer
    x = 138,095.40

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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.