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Finding the Fourth Proportional to 118,454.29, 177,690.76 and 39,568.79

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Solution

The fourth proportional to 118,454.29, 177,690.76 and 39,568.79 is: 59,356.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,454.29 : 177,690.76 = 39,568.79 : x
  2. Step 2: Convert to fraction form
    118,454.29/177,690.76 = 39,568.79/x
  3. Step 3: Cross multiply
    118,454.29x = 177,690.76 × 39,568.79
  4. Step 4: Simplify right side
    118,454.29x = 7,031,008,712.69
  5. Step 5: Solve for x
    x = 7,031,008,712.69/118,454.29
  6. Step 6: Final answer
    x = 59,356.30

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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.