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Finding the Fourth Proportional to 98,425.48, 135,827.13 and 53,713.48

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Solution

The fourth proportional to 98,425.48, 135,827.13 and 53,713.48 is: 74,124.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,425.48 : 135,827.13 = 53,713.48 : x
  2. Step 2: Convert to fraction form
    98,425.48/135,827.13 = 53,713.48/x
  3. Step 3: Cross multiply
    98,425.48x = 135,827.13 × 53,713.48
  4. Step 4: Simplify right side
    98,425.48x = 7,295,747,899.78
  5. Step 5: Solve for x
    x = 7,295,747,899.78/98,425.48
  6. Step 6: Final answer
    x = 74,124.58

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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.