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Finding the Fourth Proportional to 118,166.58, 163,071.90 and 67,178.16

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Solution

The fourth proportional to 118,166.58, 163,071.90 and 67,178.16 is: 92,707.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,166.58 : 163,071.90 = 67,178.16 : x
  2. Step 2: Convert to fraction form
    118,166.58/163,071.90 = 67,178.16/x
  3. Step 3: Cross multiply
    118,166.58x = 163,071.90 × 67,178.16
  4. Step 4: Simplify right side
    118,166.58x = 10,954,870,189.70
  5. Step 5: Solve for x
    x = 10,954,870,189.70/118,166.58
  6. Step 6: Final answer
    x = 92,707.01

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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.