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Finding the Fourth Proportional to 103,740.48, 143,169.12 and 59,028.48

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Solution

The fourth proportional to 103,740.48, 143,169.12 and 59,028.48 is: 81,463.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,740.48 : 143,169.12 = 59,028.48 : x
  2. Step 2: Convert to fraction form
    103,740.48/143,169.12 = 59,028.48/x
  3. Step 3: Cross multiply
    103,740.48x = 143,169.12 × 59,028.48
  4. Step 4: Simplify right side
    103,740.48x = 8,451,055,536.54
  5. Step 5: Solve for x
    x = 8,451,055,536.54/103,740.48
  6. Step 6: Final answer
    x = 81,463.43

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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.