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Finding the Fourth Proportional to 84,772.80, 127,180.40 and 59,861.60

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Solution

The fourth proportional to 84,772.80, 127,180.40 and 59,861.60 is: 89,807.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,772.80 : 127,180.40 = 59,861.60 : x
  2. Step 2: Convert to fraction form
    84,772.80/127,180.40 = 59,861.60/x
  3. Step 3: Cross multiply
    84,772.80x = 127,180.40 × 59,861.60
  4. Step 4: Simplify right side
    84,772.80x = 7,613,222,232.64
  5. Step 5: Solve for x
    x = 7,613,222,232.64/84,772.80
  6. Step 6: Final answer
    x = 89,807.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.