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Finding the Fourth Proportional to 86,285.84, 119,054.76 and 48,546.32

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Solution

The fourth proportional to 86,285.84, 119,054.76 and 48,546.32 is: 66,982.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,285.84 : 119,054.76 = 48,546.32 : x
  2. Step 2: Convert to fraction form
    86,285.84/119,054.76 = 48,546.32/x
  3. Step 3: Cross multiply
    86,285.84x = 119,054.76 × 48,546.32
  4. Step 4: Simplify right side
    86,285.84x = 5,779,670,476.48
  5. Step 5: Solve for x
    x = 5,779,670,476.48/86,285.84
  6. Step 6: Final answer
    x = 66,982.84

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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.