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Finding the Fourth Proportional to 98,508.84, 135,952.20 and 58,235.64

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Solution

The fourth proportional to 98,508.84, 135,952.20 and 58,235.64 is: 80,371.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,508.84 : 135,952.20 = 58,235.64 : x
  2. Step 2: Convert to fraction form
    98,508.84/135,952.20 = 58,235.64/x
  3. Step 3: Cross multiply
    98,508.84x = 135,952.20 × 58,235.64
  4. Step 4: Simplify right side
    98,508.84x = 7,917,263,376.41
  5. Step 5: Solve for x
    x = 7,917,263,376.41/98,508.84
  6. Step 6: Final answer
    x = 80,371.10

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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.