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Finding the Fourth Proportional to 93,168.30, 139,575.93 and 55,103.70

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Solution

The fourth proportional to 93,168.30, 139,575.93 and 55,103.70 is: 82,551.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,168.30 : 139,575.93 = 55,103.70 : x
  2. Step 2: Convert to fraction form
    93,168.30/139,575.93 = 55,103.70/x
  3. Step 3: Cross multiply
    93,168.30x = 139,575.93 × 55,103.70
  4. Step 4: Simplify right side
    93,168.30x = 7,691,149,476.06
  5. Step 5: Solve for x
    x = 7,691,149,476.06/93,168.30
  6. Step 6: Final answer
    x = 82,551.15

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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.