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Finding the Fourth Proportional to 107,065.99, 147,749.15 and 59,318.38

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Solution

The fourth proportional to 107,065.99, 147,749.15 and 59,318.38 is: 81,858.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,065.99 : 147,749.15 = 59,318.38 : x
  2. Step 2: Convert to fraction form
    107,065.99/147,749.15 = 59,318.38/x
  3. Step 3: Cross multiply
    107,065.99x = 147,749.15 × 59,318.38
  4. Step 4: Simplify right side
    107,065.99x = 8,764,239,189.04
  5. Step 5: Solve for x
    x = 8,764,239,189.04/107,065.99
  6. Step 6: Final answer
    x = 81,858.30

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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.