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Finding the Fourth Proportional to 118,304.65, 163,260.79 and 75,863.35

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Solution

The fourth proportional to 118,304.65, 163,260.79 and 75,863.35 is: 104,691.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,304.65 : 163,260.79 = 75,863.35 : x
  2. Step 2: Convert to fraction form
    118,304.65/163,260.79 = 75,863.35/x
  3. Step 3: Cross multiply
    118,304.65x = 163,260.79 × 75,863.35
  4. Step 4: Simplify right side
    118,304.65x = 12,385,510,453.05
  5. Step 5: Solve for x
    x = 12,385,510,453.05/118,304.65
  6. Step 6: Final answer
    x = 104,691.66

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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.