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Finding the Fourth Proportional to 124,880.70, 187,321.05 and 122,807.10

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Solution

The fourth proportional to 124,880.70, 187,321.05 and 122,807.10 is: 184,210.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,880.70 : 187,321.05 = 122,807.10 : x
  2. Step 2: Convert to fraction form
    124,880.70/187,321.05 = 122,807.10/x
  3. Step 3: Cross multiply
    124,880.70x = 187,321.05 × 122,807.10
  4. Step 4: Simplify right side
    124,880.70x = 23,004,354,919.46
  5. Step 5: Solve for x
    x = 23,004,354,919.46/124,880.70
  6. Step 6: Final answer
    x = 184,210.65

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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.