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Finding the Fourth Proportional to 191,286.56, 286,941.69 and 58,176.63

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Solution

The fourth proportional to 191,286.56, 286,941.69 and 58,176.63 is: 87,268.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,286.56 : 286,941.69 = 58,176.63 : x
  2. Step 2: Convert to fraction form
    191,286.56/286,941.69 = 58,176.63/x
  3. Step 3: Cross multiply
    191,286.56x = 286,941.69 × 58,176.63
  4. Step 4: Simplify right side
    191,286.56x = 16,693,300,530.70
  5. Step 5: Solve for x
    x = 16,693,300,530.70/191,286.56
  6. Step 6: Final answer
    x = 87,268.55

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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.