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Finding the Fourth Proportional to 98,245.52, 135,579.40 and 53,533.52

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Solution

The fourth proportional to 98,245.52, 135,579.40 and 53,533.52 is: 73,876.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,245.52 : 135,579.40 = 53,533.52 : x
  2. Step 2: Convert to fraction form
    98,245.52/135,579.40 = 53,533.52/x
  3. Step 3: Cross multiply
    98,245.52x = 135,579.40 × 53,533.52
  4. Step 4: Simplify right side
    98,245.52x = 7,258,042,521.49
  5. Step 5: Solve for x
    x = 7,258,042,521.49/98,245.52
  6. Step 6: Final answer
    x = 73,876.57

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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.