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Finding the Fourth Proportional to 218,865.62, 302,034.76 and 118,263.62

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Solution

The fourth proportional to 218,865.62, 302,034.76 and 118,263.62 is: 163,203.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,865.62 : 302,034.76 = 118,263.62 : x
  2. Step 2: Convert to fraction form
    218,865.62/302,034.76 = 118,263.62/x
  3. Step 3: Cross multiply
    218,865.62x = 302,034.76 × 118,263.62
  4. Step 4: Simplify right side
    218,865.62x = 35,719,724,083.43
  5. Step 5: Solve for x
    x = 35,719,724,083.43/218,865.62
  6. Step 6: Final answer
    x = 163,203.91

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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.