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Finding the Fourth Proportional to 118,732.32, 163,927.08 and 105,963.48

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Solution

The fourth proportional to 118,732.32, 163,927.08 and 105,963.48 is: 146,297.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,732.32 : 163,927.08 = 105,963.48 : x
  2. Step 2: Convert to fraction form
    118,732.32/163,927.08 = 105,963.48/x
  3. Step 3: Cross multiply
    118,732.32x = 163,927.08 × 105,963.48
  4. Step 4: Simplify right side
    118,732.32x = 17,370,283,863.04
  5. Step 5: Solve for x
    x = 17,370,283,863.04/118,732.32
  6. Step 6: Final answer
    x = 146,297.86

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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.