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Finding the Fourth Proportional to 302,167.80, 453,251.70 and 91,778.40

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Solution

The fourth proportional to 302,167.80, 453,251.70 and 91,778.40 is: 137,667.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,167.80 : 453,251.70 = 91,778.40 : x
  2. Step 2: Convert to fraction form
    302,167.80/453,251.70 = 91,778.40/x
  3. Step 3: Cross multiply
    302,167.80x = 453,251.70 × 91,778.40
  4. Step 4: Simplify right side
    302,167.80x = 41,598,715,823.28
  5. Step 5: Solve for x
    x = 41,598,715,823.28/302,167.80
  6. Step 6: Final answer
    x = 137,667.60

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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.