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Finding the Fourth Proportional to 123,401.80, 185,102.70 and 48,497.05

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Solution

The fourth proportional to 123,401.80, 185,102.70 and 48,497.05 is: 72,745.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,401.80 : 185,102.70 = 48,497.05 : x
  2. Step 2: Convert to fraction form
    123,401.80/185,102.70 = 48,497.05/x
  3. Step 3: Cross multiply
    123,401.80x = 185,102.70 × 48,497.05
  4. Step 4: Simplify right side
    123,401.80x = 8,976,934,897.04
  5. Step 5: Solve for x
    x = 8,976,934,897.04/123,401.80
  6. Step 6: Final answer
    x = 72,745.58

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1.5x scale

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.