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Finding the Fourth Proportional to 158,266.65, 218,348.34 and 103,848.84

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Solution

The fourth proportional to 158,266.65, 218,348.34 and 103,848.84 is: 143,272.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,266.65 : 218,348.34 = 103,848.84 : x
  2. Step 2: Convert to fraction form
    158,266.65/218,348.34 = 103,848.84/x
  3. Step 3: Cross multiply
    158,266.65x = 218,348.34 × 103,848.84
  4. Step 4: Simplify right side
    158,266.65x = 22,675,221,824.93
  5. Step 5: Solve for x
    x = 22,675,221,824.93/158,266.65
  6. Step 6: Final answer
    x = 143,272.27

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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.