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Finding the Fourth Proportional to 123,033.80, 184,541.10 and 48,139.40

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Solution

The fourth proportional to 123,033.80, 184,541.10 and 48,139.40 is: 72,205.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,033.80 : 184,541.10 = 48,139.40 : x
  2. Step 2: Convert to fraction form
    123,033.80/184,541.10 = 48,139.40/x
  3. Step 3: Cross multiply
    123,033.80x = 184,541.10 × 48,139.40
  4. Step 4: Simplify right side
    123,033.80x = 8,883,697,829.34
  5. Step 5: Solve for x
    x = 8,883,697,829.34/123,033.80
  6. Step 6: Final answer
    x = 72,205.34

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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.