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Finding the Fourth Proportional to 93,209.36, 128,584.94 and 63,005.22

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Solution

The fourth proportional to 93,209.36, 128,584.94 and 63,005.22 is: 86,917.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,209.36 : 128,584.94 = 63,005.22 : x
  2. Step 2: Convert to fraction form
    93,209.36/128,584.94 = 63,005.22/x
  3. Step 3: Cross multiply
    93,209.36x = 128,584.94 × 63,005.22
  4. Step 4: Simplify right side
    93,209.36x = 8,101,522,118.36
  5. Step 5: Solve for x
    x = 8,101,522,118.36/93,209.36
  6. Step 6: Final answer
    x = 86,917.48

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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.