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Finding the Fourth Proportional to 98,296.88, 135,637.80 and 55,843.52

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Solution

The fourth proportional to 98,296.88, 135,637.80 and 55,843.52 is: 77,057.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,296.88 : 135,637.80 = 55,843.52 : x
  2. Step 2: Convert to fraction form
    98,296.88/135,637.80 = 55,843.52/x
  3. Step 3: Cross multiply
    98,296.88x = 135,637.80 × 55,843.52
  4. Step 4: Simplify right side
    98,296.88x = 7,574,492,197.06
  5. Step 5: Solve for x
    x = 7,574,492,197.06/98,296.88
  6. Step 6: Final answer
    x = 77,057.30

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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.