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Finding the Fourth Proportional to 86,874.81, 119,884.91 and 49,148.25

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Solution

The fourth proportional to 86,874.81, 119,884.91 and 49,148.25 is: 67,823.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,874.81 : 119,884.91 = 49,148.25 : x
  2. Step 2: Convert to fraction form
    86,874.81/119,884.91 = 49,148.25/x
  3. Step 3: Cross multiply
    86,874.81x = 119,884.91 × 49,148.25
  4. Step 4: Simplify right side
    86,874.81x = 5,892,133,282.17
  5. Step 5: Solve for x
    x = 5,892,133,282.17/86,874.81
  6. Step 6: Final answer
    x = 67,823.27

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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.