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Finding the Fourth Proportional to 122,321.65, 183,482.48 and 84,996.85

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Solution

The fourth proportional to 122,321.65, 183,482.48 and 84,996.85 is: 127,495.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,321.65 : 183,482.48 = 84,996.85 : x
  2. Step 2: Convert to fraction form
    122,321.65/183,482.48 = 84,996.85/x
  3. Step 3: Cross multiply
    122,321.65x = 183,482.48 × 84,996.85
  4. Step 4: Simplify right side
    122,321.65x = 15,595,432,405.20
  5. Step 5: Solve for x
    x = 15,595,432,405.20/122,321.65
  6. Step 6: Final answer
    x = 127,495.28

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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.