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Finding the Fourth Proportional to 86,885.92, 119,874.69 and 48,639.84

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Solution

The fourth proportional to 86,885.92, 119,874.69 and 48,639.84 is: 67,107.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,885.92 : 119,874.69 = 48,639.84 : x
  2. Step 2: Convert to fraction form
    86,885.92/119,874.69 = 48,639.84/x
  3. Step 3: Cross multiply
    86,885.92x = 119,874.69 × 48,639.84
  4. Step 4: Simplify right side
    86,885.92x = 5,830,684,899.08
  5. Step 5: Solve for x
    x = 5,830,684,899.08/86,885.92
  6. Step 6: Final answer
    x = 67,107.36

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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.