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Finding the Fourth Proportional to 122,400.36, 183,452.90 and 63,203.76

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Solution

The fourth proportional to 122,400.36, 183,452.90 and 63,203.76 is: 94,729.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,400.36 : 183,452.90 = 63,203.76 : x
  2. Step 2: Convert to fraction form
    122,400.36/183,452.90 = 63,203.76/x
  3. Step 3: Cross multiply
    122,400.36x = 183,452.90 × 63,203.76
  4. Step 4: Simplify right side
    122,400.36x = 11,594,912,746.89
  5. Step 5: Solve for x
    x = 11,594,912,746.89/122,400.36
  6. Step 6: Final answer
    x = 94,729.40

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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.