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Finding the Fourth Proportional to 110,938.20, 166,407.30 and 98,472.30

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Solution

The fourth proportional to 110,938.20, 166,407.30 and 98,472.30 is: 147,708.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,938.20 : 166,407.30 = 98,472.30 : x
  2. Step 2: Convert to fraction form
    110,938.20/166,407.30 = 98,472.30/x
  3. Step 3: Cross multiply
    110,938.20x = 166,407.30 × 98,472.30
  4. Step 4: Simplify right side
    110,938.20x = 16,386,509,567.79
  5. Step 5: Solve for x
    x = 16,386,509,567.79/110,938.20
  6. Step 6: Final answer
    x = 147,708.45

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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.