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Finding the Fourth Proportional to 118,304.35, 163,278.75 and 75,238.94

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Solution

The fourth proportional to 118,304.35, 163,278.75 and 75,238.94 is: 103,841.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,304.35 : 163,278.75 = 75,238.94 : x
  2. Step 2: Convert to fraction form
    118,304.35/163,278.75 = 75,238.94/x
  3. Step 3: Cross multiply
    118,304.35x = 163,278.75 × 75,238.94
  4. Step 4: Simplify right side
    118,304.35x = 12,284,920,074.53
  5. Step 5: Solve for x
    x = 12,284,920,074.53/118,304.35
  6. Step 6: Final answer
    x = 103,841.66

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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.