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Finding the Fourth Proportional to 93,653.10, 140,479.65 and 54,311.40

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Solution

The fourth proportional to 93,653.10, 140,479.65 and 54,311.40 is: 81,467.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,653.10 : 140,479.65 = 54,311.40 : x
  2. Step 2: Convert to fraction form
    93,653.10/140,479.65 = 54,311.40/x
  3. Step 3: Cross multiply
    93,653.10x = 140,479.65 × 54,311.40
  4. Step 4: Simplify right side
    93,653.10x = 7,629,646,463.01
  5. Step 5: Solve for x
    x = 7,629,646,463.01/93,653.10
  6. Step 6: Final answer
    x = 81,467.10

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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.