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Finding the Fourth Proportional to 86,903.88, 119,934.52 and 48,672.23

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Solution

The fourth proportional to 86,903.88, 119,934.52 and 48,672.23 is: 67,171.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,903.88 : 119,934.52 = 48,672.23 : x
  2. Step 2: Convert to fraction form
    86,903.88/119,934.52 = 48,672.23/x
  3. Step 3: Cross multiply
    86,903.88x = 119,934.52 × 48,672.23
  4. Step 4: Simplify right side
    86,903.88x = 5,837,480,542.38
  5. Step 5: Solve for x
    x = 5,837,480,542.38/86,903.88
  6. Step 6: Final answer
    x = 67,171.69

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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.