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Finding the Fourth Proportional to 122,863.50, 184,058.90 and 75,339.88

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Solution

The fourth proportional to 122,863.50, 184,058.90 and 75,339.88 is: 112,864.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,863.50 : 184,058.90 = 75,339.88 : x
  2. Step 2: Convert to fraction form
    122,863.50/184,058.90 = 75,339.88/x
  3. Step 3: Cross multiply
    122,863.50x = 184,058.90 × 75,339.88
  4. Step 4: Simplify right side
    122,863.50x = 13,866,975,438.93
  5. Step 5: Solve for x
    x = 13,866,975,438.93/122,863.50
  6. Step 6: Final answer
    x = 112,864.89

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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.