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Finding the Fourth Proportional to 316,742.87, 437,114.03 and 192,563.64

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Solution

The fourth proportional to 316,742.87, 437,114.03 and 192,563.64 is: 265,743.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,742.87 : 437,114.03 = 192,563.64 : x
  2. Step 2: Convert to fraction form
    316,742.87/437,114.03 = 192,563.64/x
  3. Step 3: Cross multiply
    316,742.87x = 437,114.03 × 192,563.64
  4. Step 4: Simplify right side
    316,742.87x = 84,172,268,711.87
  5. Step 5: Solve for x
    x = 84,172,268,711.87/316,742.87
  6. Step 6: Final answer
    x = 265,743.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.