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Finding the Fourth Proportional to 93,093.20, 139,639.80 and 55,768.40

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Solution

The fourth proportional to 93,093.20, 139,639.80 and 55,768.40 is: 83,652.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,093.20 : 139,639.80 = 55,768.40 : x
  2. Step 2: Convert to fraction form
    93,093.20/139,639.80 = 55,768.40/x
  3. Step 3: Cross multiply
    93,093.20x = 139,639.80 × 55,768.40
  4. Step 4: Simplify right side
    93,093.20x = 7,787,488,222.32
  5. Step 5: Solve for x
    x = 7,787,488,222.32/93,093.20
  6. Step 6: Final answer
    x = 83,652.60

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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.