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Finding the Fourth Proportional to 316,445.55, 474,594.49 and 91,745.68

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Solution

The fourth proportional to 316,445.55, 474,594.49 and 91,745.68 is: 137,597.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,445.55 : 474,594.49 = 91,745.68 : x
  2. Step 2: Convert to fraction form
    316,445.55/474,594.49 = 91,745.68/x
  3. Step 3: Cross multiply
    316,445.55x = 474,594.49 × 91,745.68
  4. Step 4: Simplify right side
    316,445.55x = 43,541,994,209.30
  5. Step 5: Solve for x
    x = 43,541,994,209.30/316,445.55
  6. Step 6: Final answer
    x = 137,597.11

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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.