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Finding the Fourth Proportional to 107,034.75, 147,712.81 and 59,288.09

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Solution

The fourth proportional to 107,034.75, 147,712.81 and 59,288.09 is: 81,820.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,034.75 : 147,712.81 = 59,288.09 : x
  2. Step 2: Convert to fraction form
    107,034.75/147,712.81 = 59,288.09/x
  3. Step 3: Cross multiply
    107,034.75x = 147,712.81 × 59,288.09
  4. Step 4: Simplify right side
    107,034.75x = 8,757,610,373.43
  5. Step 5: Solve for x
    x = 8,757,610,373.43/107,034.75
  6. Step 6: Final answer
    x = 81,820.25

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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.