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Finding the Fourth Proportional to 107,170.97, 147,903.37 and 59,428.76

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Solution

The fourth proportional to 107,170.97, 147,903.37 and 59,428.76 is: 82,015.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,170.97 : 147,903.37 = 59,428.76 : x
  2. Step 2: Convert to fraction form
    107,170.97/147,903.37 = 59,428.76/x
  3. Step 3: Cross multiply
    107,170.97x = 147,903.37 × 59,428.76
  4. Step 4: Simplify right side
    107,170.97x = 8,789,712,990.83
  5. Step 5: Solve for x
    x = 8,789,712,990.83/107,170.97
  6. Step 6: Final answer
    x = 82,015.81

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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.