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Finding the Fourth Proportional to 93,388.60, 128,871.24 and 53,096.80

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Solution

The fourth proportional to 93,388.60, 128,871.24 and 53,096.80 is: 73,270.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,388.60 : 128,871.24 = 53,096.80 : x
  2. Step 2: Convert to fraction form
    93,388.60/128,871.24 = 53,096.80/x
  3. Step 3: Cross multiply
    93,388.60x = 128,871.24 × 53,096.80
  4. Step 4: Simplify right side
    93,388.60x = 6,842,650,456.03
  5. Step 5: Solve for x
    x = 6,842,650,456.03/93,388.60
  6. Step 6: Final answer
    x = 73,270.73

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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.