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Finding the Fourth Proportional to 93,223.14, 128,664.60 and 54,980.34

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Solution

The fourth proportional to 93,223.14, 128,664.60 and 54,980.34 is: 75,882.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,223.14 : 128,664.60 = 54,980.34 : x
  2. Step 2: Convert to fraction form
    93,223.14/128,664.60 = 54,980.34/x
  3. Step 3: Cross multiply
    93,223.14x = 128,664.60 × 54,980.34
  4. Step 4: Simplify right side
    93,223.14x = 7,074,023,453.96
  5. Step 5: Solve for x
    x = 7,074,023,453.96/93,223.14
  6. Step 6: Final answer
    x = 75,882.70

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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.