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Finding the Fourth Proportional to 122,321.80, 183,482.70 and 113,464.45

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Solution

The fourth proportional to 122,321.80, 183,482.70 and 113,464.45 is: 170,196.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,321.80 : 183,482.70 = 113,464.45 : x
  2. Step 2: Convert to fraction form
    122,321.80/183,482.70 = 113,464.45/x
  3. Step 3: Cross multiply
    122,321.80x = 183,482.70 × 113,464.45
  4. Step 4: Simplify right side
    122,321.80x = 20,818,763,640.02
  5. Step 5: Solve for x
    x = 20,818,763,640.02/122,321.80
  6. Step 6: Final answer
    x = 170,196.68

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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.