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Finding the Fourth Proportional to 222,084.80, 333,386.40 and 127,390.40

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Solution

The fourth proportional to 222,084.80, 333,386.40 and 127,390.40 is: 191,234.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,084.80 : 333,386.40 = 127,390.40 : x
  2. Step 2: Convert to fraction form
    222,084.80/333,386.40 = 127,390.40/x
  3. Step 3: Cross multiply
    222,084.80x = 333,386.40 × 127,390.40
  4. Step 4: Simplify right side
    222,084.80x = 42,470,226,850.56
  5. Step 5: Solve for x
    x = 42,470,226,850.56/222,084.80
  6. Step 6: Final answer
    x = 191,234.28

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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.