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Finding the Fourth Proportional to 98,325.90, 135,654.75 and 58,019.49

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Solution

The fourth proportional to 98,325.90, 135,654.75 and 58,019.49 is: 80,046.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,325.90 : 135,654.75 = 58,019.49 : x
  2. Step 2: Convert to fraction form
    98,325.90/135,654.75 = 58,019.49/x
  3. Step 3: Cross multiply
    98,325.90x = 135,654.75 × 58,019.49
  4. Step 4: Simplify right side
    98,325.90x = 7,870,619,411.08
  5. Step 5: Solve for x
    x = 7,870,619,411.08/98,325.90
  6. Step 6: Final answer
    x = 80,046.25

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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.