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Finding the Fourth Proportional to 93,236.40, 128,622.15 and 63,032.31

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Solution

The fourth proportional to 93,236.40, 128,622.15 and 63,032.31 is: 86,954.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,236.40 : 128,622.15 = 63,032.31 : x
  2. Step 2: Convert to fraction form
    93,236.40/128,622.15 = 63,032.31/x
  3. Step 3: Cross multiply
    93,236.40x = 128,622.15 × 63,032.31
  4. Step 4: Simplify right side
    93,236.40x = 8,107,351,231.67
  5. Step 5: Solve for x
    x = 8,107,351,231.67/93,236.40
  6. Step 6: Final answer
    x = 86,954.79

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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.