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Finding the Fourth Proportional to 158,881.14, 219,275.42 and 91,813.14

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Solution

The fourth proportional to 158,881.14, 219,275.42 and 91,813.14 is: 126,713.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,881.14 : 219,275.42 = 91,813.14 : x
  2. Step 2: Convert to fraction form
    158,881.14/219,275.42 = 91,813.14/x
  3. Step 3: Cross multiply
    158,881.14x = 219,275.42 × 91,813.14
  4. Step 4: Simplify right side
    158,881.14x = 20,132,364,835.02
  5. Step 5: Solve for x
    x = 20,132,364,835.02/158,881.14
  6. Step 6: Final answer
    x = 126,713.37

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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.