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Finding the Fourth Proportional to 133,053.40, 199,871.70 and 98,216.92

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Solution

The fourth proportional to 133,053.40, 199,871.70 and 98,216.92 is: 147,540.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,053.40 : 199,871.70 = 98,216.92 : x
  2. Step 2: Convert to fraction form
    133,053.40/199,871.70 = 98,216.92/x
  3. Step 3: Cross multiply
    133,053.40x = 199,871.70 × 98,216.92
  4. Step 4: Simplify right side
    133,053.40x = 19,630,782,769.16
  5. Step 5: Solve for x
    x = 19,630,782,769.16/133,053.40
  6. Step 6: Final answer
    x = 147,540.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.