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Finding the Fourth Proportional to 316,181.63, 474,237.50 and 79,524.40

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Solution

The fourth proportional to 316,181.63, 474,237.50 and 79,524.40 is: 119,277.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,181.63 : 474,237.50 = 79,524.40 : x
  2. Step 2: Convert to fraction form
    316,181.63/474,237.50 = 79,524.40/x
  3. Step 3: Cross multiply
    316,181.63x = 474,237.50 × 79,524.40
  4. Step 4: Simplify right side
    316,181.63x = 37,713,452,645
  5. Step 5: Solve for x
    x = 37,713,452,645/316,181.63
  6. Step 6: Final answer
    x = 119,277.81

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1.5x scale

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.