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Finding the Fourth Proportional to 98,549.64, 135,999.09 and 53,837.64

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Solution

The fourth proportional to 98,549.64, 135,999.09 and 53,837.64 is: 74,296.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,549.64 : 135,999.09 = 53,837.64 : x
  2. Step 2: Convert to fraction form
    98,549.64/135,999.09 = 53,837.64/x
  3. Step 3: Cross multiply
    98,549.64x = 135,999.09 × 53,837.64
  4. Step 4: Simplify right side
    98,549.64x = 7,321,870,047.75
  5. Step 5: Solve for x
    x = 7,321,870,047.75/98,549.64
  6. Step 6: Final answer
    x = 74,296.26

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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.