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Finding the Fourth Proportional to 93,188.56, 128,590.44 and 54,427.60

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Solution

The fourth proportional to 93,188.56, 128,590.44 and 54,427.60 is: 75,104.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,188.56 : 128,590.44 = 54,427.60 : x
  2. Step 2: Convert to fraction form
    93,188.56/128,590.44 = 54,427.60/x
  3. Step 3: Cross multiply
    93,188.56x = 128,590.44 × 54,427.60
  4. Step 4: Simplify right side
    93,188.56x = 6,998,869,032.14
  5. Step 5: Solve for x
    x = 6,998,869,032.14/93,188.56
  6. Step 6: Final answer
    x = 75,104.38

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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.