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Finding the Fourth Proportional to 110,973.60, 166,314.60 and 98,434.80

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Solution

The fourth proportional to 110,973.60, 166,314.60 and 98,434.80 is: 147,522.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,973.60 : 166,314.60 = 98,434.80 : x
  2. Step 2: Convert to fraction form
    110,973.60/166,314.60 = 98,434.80/x
  3. Step 3: Cross multiply
    110,973.60x = 166,314.60 × 98,434.80
  4. Step 4: Simplify right side
    110,973.60x = 16,371,144,388.08
  5. Step 5: Solve for x
    x = 16,371,144,388.08/110,973.60
  6. Step 6: Final answer
    x = 147,522.87

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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.