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Finding the Fourth Proportional to 93,280.60, 128,770.32 and 55,027.18

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Solution

The fourth proportional to 93,280.60, 128,770.32 and 55,027.18 is: 75,962.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,280.60 : 128,770.32 = 55,027.18 : x
  2. Step 2: Convert to fraction form
    93,280.60/128,770.32 = 55,027.18/x
  3. Step 3: Cross multiply
    93,280.60x = 128,770.32 × 55,027.18
  4. Step 4: Simplify right side
    93,280.60x = 7,085,867,577.30
  5. Step 5: Solve for x
    x = 7,085,867,577.30/93,280.60
  6. Step 6: Final answer
    x = 75,962.93

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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.