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Finding the Fourth Proportional to 98,541.49, 135,987.22 and 53,219.48

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Solution

The fourth proportional to 98,541.49, 135,987.22 and 53,219.48 is: 73,442.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,541.49 : 135,987.22 = 53,219.48 : x
  2. Step 2: Convert to fraction form
    98,541.49/135,987.22 = 53,219.48/x
  3. Step 3: Cross multiply
    98,541.49x = 135,987.22 × 53,219.48
  4. Step 4: Simplify right side
    98,541.49x = 7,237,169,062.04
  5. Step 5: Solve for x
    x = 7,237,169,062.04/98,541.49
  6. Step 6: Final answer
    x = 73,442.86

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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.