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Finding the Fourth Proportional to 68,232, 94,160.77 and 39,938.30

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Solution

The fourth proportional to 68,232, 94,160.77 and 39,938.30 is: 55,115.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,232 : 94,160.77 = 39,938.30 : x
  2. Step 2: Convert to fraction form
    68,232/94,160.77 = 39,938.30/x
  3. Step 3: Cross multiply
    68,232x = 94,160.77 × 39,938.30
  4. Step 4: Simplify right side
    68,232x = 3,760,620,509.84
  5. Step 5: Solve for x
    x = 3,760,620,509.84/68,232
  6. Step 6: Final answer
    x = 55,115.20

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Double scale
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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.