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Finding the Fourth Proportional to 93,454.14, 128,965.06 and 53,167.04

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Solution

The fourth proportional to 93,454.14, 128,965.06 and 53,167.04 is: 73,369.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,454.14 : 128,965.06 = 53,167.04 : x
  2. Step 2: Convert to fraction form
    93,454.14/128,965.06 = 53,167.04/x
  3. Step 3: Cross multiply
    93,454.14x = 128,965.06 × 53,167.04
  4. Step 4: Simplify right side
    93,454.14x = 6,856,690,408.87
  5. Step 5: Solve for x
    x = 6,856,690,408.87/93,454.14
  6. Step 6: Final answer
    x = 73,369.58

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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.