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Finding the Fourth Proportional to 122,135.55, 183,484.90 and 117,091.07

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Solution

The fourth proportional to 122,135.55, 183,484.90 and 117,091.07 is: 175,906.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,135.55 : 183,484.90 = 117,091.07 : x
  2. Step 2: Convert to fraction form
    122,135.55/183,484.90 = 117,091.07/x
  3. Step 3: Cross multiply
    122,135.55x = 183,484.90 × 117,091.07
  4. Step 4: Simplify right side
    122,135.55x = 21,484,443,186.85
  5. Step 5: Solve for x
    x = 21,484,443,186.85/122,135.55
  6. Step 6: Final answer
    x = 175,906.56

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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.