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Finding the Fourth Proportional to 153,635.46, 230,460.48 and 74,655.60

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Solution

The fourth proportional to 153,635.46, 230,460.48 and 74,655.60 is: 111,986.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,635.46 : 230,460.48 = 74,655.60 : x
  2. Step 2: Convert to fraction form
    153,635.46/230,460.48 = 74,655.60/x
  3. Step 3: Cross multiply
    153,635.46x = 230,460.48 × 74,655.60
  4. Step 4: Simplify right side
    153,635.46x = 17,205,165,410.69
  5. Step 5: Solve for x
    x = 17,205,165,410.69/153,635.46
  6. Step 6: Final answer
    x = 111,986.94

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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.