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Finding the Fourth Proportional to 115,958.40, 173,678.40 and 113,366.40

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Solution

The fourth proportional to 115,958.40, 173,678.40 and 113,366.40 is: 169,796.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,958.40 : 173,678.40 = 113,366.40 : x
  2. Step 2: Convert to fraction form
    115,958.40/173,678.40 = 113,366.40/x
  3. Step 3: Cross multiply
    115,958.40x = 173,678.40 × 113,366.40
  4. Step 4: Simplify right side
    115,958.40x = 19,689,294,965.76
  5. Step 5: Solve for x
    x = 19,689,294,965.76/115,958.40
  6. Step 6: Final answer
    x = 169,796.19

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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.