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Finding the Fourth Proportional to 122,307.70, 183,461.55 and 92,783.20

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Solution

The fourth proportional to 122,307.70, 183,461.55 and 92,783.20 is: 139,174.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,307.70 : 183,461.55 = 92,783.20 : x
  2. Step 2: Convert to fraction form
    122,307.70/183,461.55 = 92,783.20/x
  3. Step 3: Cross multiply
    122,307.70x = 183,461.55 × 92,783.20
  4. Step 4: Simplify right side
    122,307.70x = 17,022,149,685.96
  5. Step 5: Solve for x
    x = 17,022,149,685.96/122,307.70
  6. Step 6: Final answer
    x = 139,174.80

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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.