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Finding the Fourth Proportional to 118,480.76, 163,477.08 and 68,179.76

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Solution

The fourth proportional to 118,480.76, 163,477.08 and 68,179.76 is: 94,072.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,480.76 : 163,477.08 = 68,179.76 : x
  2. Step 2: Convert to fraction form
    118,480.76/163,477.08 = 68,179.76/x
  3. Step 3: Cross multiply
    118,480.76x = 163,477.08 × 68,179.76
  4. Step 4: Simplify right side
    118,480.76x = 11,145,828,079.90
  5. Step 5: Solve for x
    x = 11,145,828,079.90/118,480.76
  6. Step 6: Final answer
    x = 94,072.89

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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.