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Finding the Fourth Proportional to 176,536.83, 243,620.13 and 103,981.89

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Solution

The fourth proportional to 176,536.83, 243,620.13 and 103,981.89 is: 143,494.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,536.83 : 243,620.13 = 103,981.89 : x
  2. Step 2: Convert to fraction form
    176,536.83/243,620.13 = 103,981.89/x
  3. Step 3: Cross multiply
    176,536.83x = 243,620.13 × 103,981.89
  4. Step 4: Simplify right side
    176,536.83x = 25,332,081,559.45
  5. Step 5: Solve for x
    x = 25,332,081,559.45/176,536.83
  6. Step 6: Final answer
    x = 143,494.60

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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.