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Finding the Fourth Proportional to 118,888.98, 164,066.94 and 65,175.95

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Solution

The fourth proportional to 118,888.98, 164,066.94 and 65,175.95 is: 89,942.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,888.98 : 164,066.94 = 65,175.95 : x
  2. Step 2: Convert to fraction form
    118,888.98/164,066.94 = 65,175.95/x
  3. Step 3: Cross multiply
    118,888.98x = 164,066.94 × 65,175.95
  4. Step 4: Simplify right side
    118,888.98x = 10,693,217,857.76
  5. Step 5: Solve for x
    x = 10,693,217,857.76/118,888.98
  6. Step 6: Final answer
    x = 89,942.89

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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.