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Finding the Fourth Proportional to 122,649.15, 183,979.80 and 63,600.15

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Solution

The fourth proportional to 122,649.15, 183,979.80 and 63,600.15 is: 95,403.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,649.15 : 183,979.80 = 63,600.15 : x
  2. Step 2: Convert to fraction form
    122,649.15/183,979.80 = 63,600.15/x
  3. Step 3: Cross multiply
    122,649.15x = 183,979.80 × 63,600.15
  4. Step 4: Simplify right side
    122,649.15x = 11,701,142,876.97
  5. Step 5: Solve for x
    x = 11,701,142,876.97/122,649.15
  6. Step 6: Final answer
    x = 95,403.38

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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.