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Finding the Fourth Proportional to 93,653.28, 140,091.12 and 71,297.28

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Solution

The fourth proportional to 93,653.28, 140,091.12 and 71,297.28 is: 106,649.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,653.28 : 140,091.12 = 71,297.28 : x
  2. Step 2: Convert to fraction form
    93,653.28/140,091.12 = 71,297.28/x
  3. Step 3: Cross multiply
    93,653.28x = 140,091.12 × 71,297.28
  4. Step 4: Simplify right side
    93,653.28x = 9,988,115,808.15
  5. Step 5: Solve for x
    x = 9,988,115,808.15/93,653.28
  6. Step 6: Final answer
    x = 106,649.93

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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.