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Finding the Fourth Proportional to 98,238.38, 135,568.96 and 53,526.38

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Solution

The fourth proportional to 98,238.38, 135,568.96 and 53,526.38 is: 73,866.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,238.38 : 135,568.96 = 53,526.38 : x
  2. Step 2: Convert to fraction form
    98,238.38/135,568.96 = 53,526.38/x
  3. Step 3: Cross multiply
    98,238.38x = 135,568.96 × 53,526.38
  4. Step 4: Simplify right side
    98,238.38x = 7,256,514,857.50
  5. Step 5: Solve for x
    x = 7,256,514,857.50/98,238.38
  6. Step 6: Final answer
    x = 73,866.40

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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.