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Finding the Fourth Proportional to 149,225.67, 223,697.81 and 74,274.95

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Solution

The fourth proportional to 149,225.67, 223,697.81 and 74,274.95 is: 111,342.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,225.67 : 223,697.81 = 74,274.95 : x
  2. Step 2: Convert to fraction form
    149,225.67/223,697.81 = 74,274.95/x
  3. Step 3: Cross multiply
    149,225.67x = 223,697.81 × 74,274.95
  4. Step 4: Simplify right side
    149,225.67x = 16,615,144,397.79
  5. Step 5: Solve for x
    x = 16,615,144,397.79/149,225.67
  6. Step 6: Final answer
    x = 111,342.40

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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.