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Finding the Fourth Proportional to 98,525.25, 135,965.39 and 53,813.25

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Solution

The fourth proportional to 98,525.25, 135,965.39 and 53,813.25 is: 74,262.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,525.25 : 135,965.39 = 53,813.25 : x
  2. Step 2: Convert to fraction form
    98,525.25/135,965.39 = 53,813.25/x
  3. Step 3: Cross multiply
    98,525.25x = 135,965.39 × 53,813.25
  4. Step 4: Simplify right side
    98,525.25x = 7,316,739,254.35
  5. Step 5: Solve for x
    x = 7,316,739,254.35/98,525.25
  6. Step 6: Final answer
    x = 74,262.58

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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.