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Finding the Fourth Proportional to 123,630.70, 185,365.05 and 48,705.70

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Solution

The fourth proportional to 123,630.70, 185,365.05 and 48,705.70 is: 73,026.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,630.70 : 185,365.05 = 48,705.70 : x
  2. Step 2: Convert to fraction form
    123,630.70/185,365.05 = 48,705.70/x
  3. Step 3: Cross multiply
    123,630.70x = 185,365.05 × 48,705.70
  4. Step 4: Simplify right side
    123,630.70x = 9,028,334,515.79
  5. Step 5: Solve for x
    x = 9,028,334,515.79/123,630.70
  6. Step 6: Final answer
    x = 73,026.64

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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.