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Finding the Fourth Proportional to 98,292.69, 135,612.09 and 58,020.03

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Solution

The fourth proportional to 98,292.69, 135,612.09 and 58,020.03 is: 80,048.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,292.69 : 135,612.09 = 58,020.03 : x
  2. Step 2: Convert to fraction form
    98,292.69/135,612.09 = 58,020.03/x
  3. Step 3: Cross multiply
    98,292.69x = 135,612.09 × 58,020.03
  4. Step 4: Simplify right side
    98,292.69x = 7,868,217,530.16
  5. Step 5: Solve for x
    x = 7,868,217,530.16/98,292.69
  6. Step 6: Final answer
    x = 80,048.86

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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.