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Finding the Fourth Proportional to 124,027.85, 186,041.08 and 45,142.08

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Solution

The fourth proportional to 124,027.85, 186,041.08 and 45,142.08 is: 67,712.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,027.85 : 186,041.08 = 45,142.08 : x
  2. Step 2: Convert to fraction form
    124,027.85/186,041.08 = 45,142.08/x
  3. Step 3: Cross multiply
    124,027.85x = 186,041.08 × 45,142.08
  4. Step 4: Simplify right side
    124,027.85x = 8,398,280,548.46
  5. Step 5: Solve for x
    x = 8,398,280,548.46/124,027.85
  6. Step 6: Final answer
    x = 67,712.86

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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.