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Finding the Fourth Proportional to 218,615.59, 301,711.03 and 127,966.06

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Solution

The fourth proportional to 218,615.59, 301,711.03 and 127,966.06 is: 176,605.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,615.59 : 301,711.03 = 127,966.06 : x
  2. Step 2: Convert to fraction form
    218,615.59/301,711.03 = 127,966.06/x
  3. Step 3: Cross multiply
    218,615.59x = 301,711.03 × 127,966.06
  4. Step 4: Simplify right side
    218,615.59x = 38,608,771,767.64
  5. Step 5: Solve for x
    x = 38,608,771,767.64/218,615.59
  6. Step 6: Final answer
    x = 176,605.76

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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.