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Finding the Fourth Proportional to 93,213.37, 128,590.44 and 63,009.22

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Solution

The fourth proportional to 93,213.37, 128,590.44 and 63,009.22 is: 86,922.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,213.37 : 128,590.44 = 63,009.22 : x
  2. Step 2: Convert to fraction form
    93,213.37/128,590.44 = 63,009.22/x
  3. Step 3: Cross multiply
    93,213.37x = 128,590.44 × 63,009.22
  4. Step 4: Simplify right side
    93,213.37x = 8,102,383,323.86
  5. Step 5: Solve for x
    x = 8,102,383,323.86/93,213.37
  6. Step 6: Final answer
    x = 86,922.97

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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.