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Finding the Fourth Proportional to 85,980.40, 118,651.96 and 48,253.84

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Solution

The fourth proportional to 85,980.40, 118,651.96 and 48,253.84 is: 66,589.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,980.40 : 118,651.96 = 48,253.84 : x
  2. Step 2: Convert to fraction form
    85,980.40/118,651.96 = 48,253.84/x
  3. Step 3: Cross multiply
    85,980.40x = 118,651.96 × 48,253.84
  4. Step 4: Simplify right side
    85,980.40x = 5,725,412,693.53
  5. Step 5: Solve for x
    x = 5,725,412,693.53/85,980.40
  6. Step 6: Final answer
    x = 66,589.74

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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.