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Finding the Fourth Proportional to 198,438.93, 297,683.64 and 65,332.44

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Solution

The fourth proportional to 198,438.93, 297,683.64 and 65,332.44 is: 98,006.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,438.93 : 297,683.64 = 65,332.44 : x
  2. Step 2: Convert to fraction form
    198,438.93/297,683.64 = 65,332.44/x
  3. Step 3: Cross multiply
    198,438.93x = 297,683.64 × 65,332.44
  4. Step 4: Simplify right side
    198,438.93x = 19,448,398,549.28
  5. Step 5: Solve for x
    x = 19,448,398,549.28/198,438.93
  6. Step 6: Final answer
    x = 98,006.97

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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.