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Finding the Fourth Proportional to 123,430.56, 185,145.84 and 29,935.50

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Solution

The fourth proportional to 123,430.56, 185,145.84 and 29,935.50 is: 44,903.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,430.56 : 185,145.84 = 29,935.50 : x
  2. Step 2: Convert to fraction form
    123,430.56/185,145.84 = 29,935.50/x
  3. Step 3: Cross multiply
    123,430.56x = 185,145.84 × 29,935.50
  4. Step 4: Simplify right side
    123,430.56x = 5,542,433,293.32
  5. Step 5: Solve for x
    x = 5,542,433,293.32/123,430.56
  6. Step 6: Final answer
    x = 44,903.25

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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.