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Finding the Fourth Proportional to 122,755.69, 168,668.71 and 97,561.45

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Solution

The fourth proportional to 122,755.69, 168,668.71 and 97,561.45 is: 134,051.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,755.69 : 168,668.71 = 97,561.45 : x
  2. Step 2: Convert to fraction form
    122,755.69/168,668.71 = 97,561.45/x
  3. Step 3: Cross multiply
    122,755.69x = 168,668.71 × 97,561.45
  4. Step 4: Simplify right side
    122,755.69x = 16,455,563,917.23
  5. Step 5: Solve for x
    x = 16,455,563,917.23/122,755.69
  6. Step 6: Final answer
    x = 134,051.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.