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Finding the Fourth Proportional to 107,419.80, 160,935.30 and 91,867.80

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Solution

The fourth proportional to 107,419.80, 160,935.30 and 91,867.80 is: 137,635.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,419.80 : 160,935.30 = 91,867.80 : x
  2. Step 2: Convert to fraction form
    107,419.80/160,935.30 = 91,867.80/x
  3. Step 3: Cross multiply
    107,419.80x = 160,935.30 × 91,867.80
  4. Step 4: Simplify right side
    107,419.80x = 14,784,771,953.34
  5. Step 5: Solve for x
    x = 14,784,771,953.34/107,419.80
  6. Step 6: Final answer
    x = 137,635.44

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1.5x scale

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.