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Finding the Fourth Proportional to 86,456.80, 119,340.14 and 50,658.40

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Solution

The fourth proportional to 86,456.80, 119,340.14 and 50,658.40 is: 69,926.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,456.80 : 119,340.14 = 50,658.40 : x
  2. Step 2: Convert to fraction form
    86,456.80/119,340.14 = 50,658.40/x
  3. Step 3: Cross multiply
    86,456.80x = 119,340.14 × 50,658.40
  4. Step 4: Simplify right side
    86,456.80x = 6,045,580,548.18
  5. Step 5: Solve for x
    x = 6,045,580,548.18/86,456.80
  6. Step 6: Final answer
    x = 69,926.03

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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.