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Finding the Fourth Proportional to 158,232.84, 218,598.48 and 103,913.88

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Solution

The fourth proportional to 158,232.84, 218,598.48 and 103,913.88 is: 143,556.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,232.84 : 218,598.48 = 103,913.88 : x
  2. Step 2: Convert to fraction form
    158,232.84/218,598.48 = 103,913.88/x
  3. Step 3: Cross multiply
    158,232.84x = 218,598.48 × 103,913.88
  4. Step 4: Simplify right side
    158,232.84x = 22,715,416,218.90
  5. Step 5: Solve for x
    x = 22,715,416,218.90/158,232.84
  6. Step 6: Final answer
    x = 143,556.90

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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.