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Finding the Fourth Proportional to 134,498.73, 201,689.73 and 45,728.40

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Solution

The fourth proportional to 134,498.73, 201,689.73 and 45,728.40 is: 68,572.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,498.73 : 201,689.73 = 45,728.40 : x
  2. Step 2: Convert to fraction form
    134,498.73/201,689.73 = 45,728.40/x
  3. Step 3: Cross multiply
    134,498.73x = 201,689.73 × 45,728.40
  4. Step 4: Simplify right side
    134,498.73x = 9,222,948,649.33
  5. Step 5: Solve for x
    x = 9,222,948,649.33/134,498.73
  6. Step 6: Final answer
    x = 68,572.76

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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.