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Finding the Fourth Proportional to 86,083.74, 128,885.04 and 46,499.04

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Solution

The fourth proportional to 86,083.74, 128,885.04 and 46,499.04 is: 69,618.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,083.74 : 128,885.04 = 46,499.04 : x
  2. Step 2: Convert to fraction form
    86,083.74/128,885.04 = 46,499.04/x
  3. Step 3: Cross multiply
    86,083.74x = 128,885.04 × 46,499.04
  4. Step 4: Simplify right side
    86,083.74x = 5,993,030,630.36
  5. Step 5: Solve for x
    x = 5,993,030,630.36/86,083.74
  6. Step 6: Final answer
    x = 69,618.61

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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.