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Finding the Fourth Proportional to 118,304.65, 163,235.46 and 75,268.60

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Solution

The fourth proportional to 118,304.65, 163,235.46 and 75,268.60 is: 103,854.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,304.65 : 163,235.46 = 75,268.60 : x
  2. Step 2: Convert to fraction form
    118,304.65/163,235.46 = 75,268.60/x
  3. Step 3: Cross multiply
    118,304.65x = 163,235.46 × 75,268.60
  4. Step 4: Simplify right side
    118,304.65x = 12,286,503,728.38
  5. Step 5: Solve for x
    x = 12,286,503,728.38/118,304.65
  6. Step 6: Final answer
    x = 103,854.79

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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.