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Finding the Fourth Proportional to 123,602.56, 170,653.44 and 73,317.76

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Solution

The fourth proportional to 123,602.56, 170,653.44 and 73,317.76 is: 101,227.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,602.56 : 170,653.44 = 73,317.76 : x
  2. Step 2: Convert to fraction form
    123,602.56/170,653.44 = 73,317.76/x
  3. Step 3: Cross multiply
    123,602.56x = 170,653.44 × 73,317.76
  4. Step 4: Simplify right side
    123,602.56x = 12,511,927,957.09
  5. Step 5: Solve for x
    x = 12,511,927,957.09/123,602.56
  6. Step 6: Final answer
    x = 101,227.09

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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.