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Finding the Fourth Proportional to 193,229.76, 289,848.48 and 74,888.64

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Solution

The fourth proportional to 193,229.76, 289,848.48 and 74,888.64 is: 112,334.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,229.76 : 289,848.48 = 74,888.64 : x
  2. Step 2: Convert to fraction form
    193,229.76/289,848.48 = 74,888.64/x
  3. Step 3: Cross multiply
    193,229.76x = 289,848.48 × 74,888.64
  4. Step 4: Simplify right side
    193,229.76x = 21,706,358,473.27
  5. Step 5: Solve for x
    x = 21,706,358,473.27/193,229.76
  6. Step 6: Final answer
    x = 112,334.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.