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Finding the Fourth Proportional to 222,431.80, 333,647.70 and 127,953.40

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Solution

The fourth proportional to 222,431.80, 333,647.70 and 127,953.40 is: 191,930.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,431.80 : 333,647.70 = 127,953.40 : x
  2. Step 2: Convert to fraction form
    222,431.80/333,647.70 = 127,953.40/x
  3. Step 3: Cross multiply
    222,431.80x = 333,647.70 × 127,953.40
  4. Step 4: Simplify right side
    222,431.80x = 42,691,357,617.18
  5. Step 5: Solve for x
    x = 42,691,357,617.18/222,431.80
  6. Step 6: Final answer
    x = 191,930.10

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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.