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Finding the Fourth Proportional to 93,611.90, 129,246.77 and 55,383.75

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Solution

The fourth proportional to 93,611.90, 129,246.77 and 55,383.75 is: 76,466.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,611.90 : 129,246.77 = 55,383.75 : x
  2. Step 2: Convert to fraction form
    93,611.90/129,246.77 = 55,383.75/x
  3. Step 3: Cross multiply
    93,611.90x = 129,246.77 × 55,383.75
  4. Step 4: Simplify right side
    93,611.90x = 7,158,170,936.45
  5. Step 5: Solve for x
    x = 7,158,170,936.45/93,611.90
  6. Step 6: Final answer
    x = 76,466.46

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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.